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I NEED HELP! 2x + 1 over 3 - 2 = -7 what does x equal??

 Apr 22, 2014
 #1
avatar+63 
0

Set it up as:

$${\frac{\left({\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,\small\textbf+\,}}{\mathtt{1}}\right)}{\left({\mathtt{3}}{\mathtt{\,-\,}}{\mathtt{2}}\right)}} = -{\mathtt{7}}$$

First, simplify the denominator to get 1. Since any number over 1 is the same number, you get the answer

$${\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{x}}{\mathtt{\,\small\textbf+\,}}{\mathtt{1}} = -{\mathtt{7}}$$

Subtract 1 from both sides to get

$${\mathtt{2}}{\mathtt{\,\times\,}}{\mathtt{x}} = -{\mathtt{7}}$$

Then, just divide both sides by 2 and you're done!

$${\mathtt{x}} = -{\mathtt{3.5}}$$

 

Hope this helped!

:D

 Apr 22, 2014
 #2
avatar+118673 
0

Thanks for answering CreeperCosmo but I do believe you have made a small mistake.

Since you are a member you can edit your answer and fix it. 

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This question could also be interpreted differently. It could be;

$$2x+\frac{1}{3}-2=-7\\
\mbox{ or}\\
\frac{2x+1}{3}-2=-7\\$$

Maybe the asker could tell us which was required.

The motto is - Always use brackets, even when using words!

 Apr 23, 2014

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