91=-7(-3x+8)

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Solution for 91=-7(-3x+8) equation: 



91=-7(-3x+8)

We move all terms to the left:

91-(-7(-3x+8))=0



We calculate terms in parentheses: -(-7(-3x+8)), so:

-7(-3x+8)

We multiply parentheses

21x-56

Back to the equation:

-(21x-56)



We get rid of parentheses

-21x+56+91=0

We add all the numbers together, and all the variables

-21x+147=0

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

-21x=-147

x=-147/-21

x=+7

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