7(8-4a)-4(-a-8)=64

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Solution for 7(8-4a)-4(-a-8)=64 equation: 



7(8-4a)-4(-a-8)=64

We move all terms to the left:

7(8-4a)-4(-a-8)-(64)=0

We add all the numbers together, and all the variables

7(-4a+8)-4(-1a-8)-64=0

We multiply parentheses

-28a+4a+56+32-64=0

We add all the numbers together, and all the variables

-24a+24=0

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

-24a=-24

a=-24/-24

a=1

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