56-91=7a+91-91

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Solution for 56-91=7a+91-91 equation: 



56-91=7a+91-91

We move all terms to the left:

56-91-(7a+91-91)=0

We add all the numbers together, and all the variables

-(+7a)+56-91=0

We add all the numbers together, and all the variables

-(+7a)-35=0

We get rid of parentheses

-7a-35=0

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

-7a=35

a=35/-7

a=-5

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