-7(-8a-7)=-7(1-7a)+7

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Solution for -7(-8a-7)=-7(1-7a)+7 equation: 



-7(-8a-7)=-7(1-7a)+7

We move all terms to the left:

-7(-8a-7)-(-7(1-7a)+7)=0

We add all the numbers together, and all the variables

-7(-8a-7)-(-7(-7a+1)+7)=0

We multiply parentheses

56a-(-7(-7a+1)+7)+49=0



We calculate terms in parentheses: -(-7(-7a+1)+7), so:

-7(-7a+1)+7

We multiply parentheses

49a-7+7

We add all the numbers together, and all the variables

49a

Back to the equation:

-(49a)



We add all the numbers together, and all the variables

7a+49=0

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

7a=-49

a=-49/7

a=-7

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