15x+91=7x-40

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Solution for 15x+91=7x-40 equation: 



15x+91=7x-40

We move all terms to the left:

15x+91-(7x-40)=0

We get rid of parentheses

15x-7x+40+91=0

We add all the numbers together, and all the variables

8x+131=0

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

8x=-131

x=-131/8

x=-16+3/8

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