64=-9a+a

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Solution for 64=-9a+a equation: 



64=-9a+a

We move all terms to the left:

64-(-9a+a)=0

We add all the numbers together, and all the variables

-(-8a)+64=0

We get rid of parentheses

8a+64=0

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

8a=-64

a=-64/8

a=-8

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