-266=7(4a-8)+7a

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Solution for -266=7(4a-8)+7a equation: 



-266=7(4a-8)+7a

We move all terms to the left:

-266-(7(4a-8)+7a)=0



We calculate terms in parentheses: -(7(4a-8)+7a), so:

7(4a-8)+7a

We add all the numbers together, and all the variables

7a+7(4a-8)

We multiply parentheses

7a+28a-56

We add all the numbers together, and all the variables

35a-56

Back to the equation:

-(35a-56)



We get rid of parentheses

-35a+56-266=0

We add all the numbers together, and all the variables

-35a-210=0

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

-35a=210

a=210/-35

a=-6

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