SOLUTION: I know I'm solving for x, so I think I set up the equation like (2x+5)+(3x+1)+(13)+(5x-7)=? My problem is that I don't know what I set it to equal to. <a href="http://s155.ph

Question 139411: I know I'm solving for x, so I think I set up the equation like
(2x+5)+(3x+1)+(13)+(5x-7)=? My problem is that I don't know what I set it to equal to.

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Since the diagonals of a rectangle are equal, this means that we have the equation

Remove the parenthesis

Combine like terms on the left side

Combine like terms on the right side

Add 2 to both sides

Subtract 3x from both sides

Combine like terms on the left side

Combine like terms on the right side

Divide both sides by 4 to isolate x

Divide

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Answer:
So our answer is

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