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#### The Pook

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##### 9 Cans of Ravioli
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I took Algebra last year, but I cant remember something.<br />
<br />
It's simple as hell, I guarentte it, I just don't remember how to do it. <img src="/images/smilies/whistle.gif" border="0" alt="" title="Whistle" class="inlineimg" /><br />
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28(x+1) = 16(2x-2)<br />
<br />
Don't need the answer, just forgot how to get the value of x. Just need help remembering. Although the answer would be nice as long as you tell me how to do it. <img src="/images/smilies/tongue.gif" border="0" alt="" title="Stick Out Tongue" class="inlineimg" /><img src="/images/smilies/rolleyes.gif" border="0" alt="" title="Roll Eyes (Sarcastic)" class="inlineimg" />

#### Chopes

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Isolate x.<br />
<br />
Multiply it out, and then try and find a way to make x only be on one size of the = sign.

#### Tyrker

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28(x+1) = 16(2x-2)<br />
28x+28=32x-32<br />
28=4x-32<br />
60=4x<br />
15=x<br />
<br />
Edit: Correction to calculations from NEvolution

The Pook

#### The Pook

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##### 9 Cans of Ravioli
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Thanks Tyrker. <img src="/images/smilies/thumb.gif" border="0" alt="" title="Thumb" class="inlineimg" />

#### TheLegend

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6,588 Posts
<div style="margin:20px; margin-top:5px; ">
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Originally Posted by <strong>The Pook</strong>

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<div style="font-style:italic">I took Algebra last year, but I cant remember something.<br />
<br />
It's simple as hell, I guarentte it, I just don't remember how to do it. <img src="/images/smilies/whistle.gif" border="0" alt="" title="Whistle" class="inlineimg" /><br />
<br />
28(x+1) = 16(2x-2)<br />
<br />
Don't need the answer, just forgot how to get the value of x. Just need help remembering. Although the answer would be nice as long as you tell me how to do it. <img src="/images/smilies/tongue.gif" border="0" alt="" title="Stick Out Tongue" class="inlineimg" /><img src="/images/smilies/rolleyes.gif" border="0" alt="" title="Roll Eyes (Sarcastic)" class="inlineimg" /></div>

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</div>Multiply x and 1 by 28 and 16 by 2x and -2 to get 28x+28 = 32x-32. Subtract 28x from both side and add 32 to both. This gives you 60=4x. Divide both sides by 4 to get 15 which = x.

#### Burn

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13,844 Posts
Two words: Distributive Property<br />
<br />
Ring any bells?

#### splat00n

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<div style="margin:20px; margin-top:5px; ">
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Originally Posted by <strong>Tyrker</strong>

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<div style="font-style:italic">28(x+1) = 16(2x-2)<br />
28x+28=36x-36<br />
28=8x-36<br />
64=8x<br />
8=x</div>

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</div>haha yeah, I suck at math <img src="/images/smilies/frown.gif" border="0" alt="" title="Frown" class="inlineimg" /> I gotta try though if not I'm doomed!!!

#### NEvolution

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<div style="margin:20px; margin-top:5px; ">
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Originally Posted by <strong>Tyrker</strong>

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<div style="font-style:italic">28(x+1) = 16(2x-2)<br />
28x+28=3<b>2</b>x-3<b>2</b><br />
<b>28</b>=<b>4</b>x-32<br />
<b>60</b>=<b>4</b>x<br />
<b>15</b>=x</div>

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</div>Corrected

Tyrker

#### guitar22891

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28(x+1) = 16(2x-2)<br />
28x + 28 = 32x -32<br />
-28x -28x<br />
28 = 4x - 32<br />
+32 +32<br />
60 = 4x<br />
15 = x<br />
x = 15

#### Tyrker

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lol thanks NEvolution for the correction but I guess I still got the point over on how to do it even if I couldn't do the actual basic math of it <img src="/images/smilies/smile.gif" border="0" alt="" title="Smile" class="inlineimg" />

#### NEvolution

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<div style="margin:20px; margin-top:5px; ">
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Originally Posted by <strong>Tyrker</strong>

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<div style="font-style:italic">lol thanks NEvolution for the correction but I guess I still got the point over on how to do it even if I couldn't do the actual basic math of it <img src="/images/smilies/smile.gif" border="0" alt="" title="Smile" class="inlineimg" /></div>

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</div>Indeed. Learning/knowing the concept is much more important than blindly getting the answer. <img src="/images/smilies/thumb.gif" border="0" alt="" title="Thumb" class="inlineimg" />

#### Kopi

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as soon as i saw the >.> i knew it was a pook thread. It's alreayd been answered, but I'm gonna try it, i havn't done algebra in a while<br />
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28(x+1) = 16(2x-2)<br />
28x+28 = 32x-32<br />
28x-28x+28=32x-28x-32<br />
28=4x-32+32<br />
28+32=4x<br />
60=4x<br />
60/4=4x/4<br />
15=X<br />
<br />
Yeah I do it weird, but its how I do it to always get it

#### bdattilo

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Ti-89.<img src="/images/smilies/thumb.gif" border="0" alt="" title="Thumb" class="inlineimg" />

#### bblackmon19

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distributive property !!!!

#### apavlov13

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A(x+B) = Ax + AB

#### DEMON32

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WOO, someone else is doing the same math as me<img alt="" class="inlineimg" src="/images/smilies/rolleyes.gif" style="border:0px solid;" title="Roll Eyes (Sarcastic)">

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