7x+13=2x-9=90

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Solution for 7x+13=2x-9=90 equation: 



7x+13=2x-9=90

We move all terms to the left:

7x+13-(2x-9)=0

We get rid of parentheses

7x-2x+9+13=0

We add all the numbers together, and all the variables

5x+22=0

We move all terms containing x to the left, all other terms to the right

5x=-22

x=-22/5

x=-4+2/5

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