-1=9a-64

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Solution for -1=9a-64 equation: 



-1=9a-64

We move all terms to the left:

-1-(9a-64)=0

We get rid of parentheses

-9a+64-1=0

We add all the numbers together, and all the variables

-9a+63=0

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

-9a=-63

a=-63/-9

a=+7

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