9(a-7)=63

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Solution for 9(a-7)=63 equation: 



9(a-7)=63

We move all terms to the left:

9(a-7)-(63)=0

We multiply parentheses

9a-63-63=0

We add all the numbers together, and all the variables

9a-126=0

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

9a=126

a=126/9

a=14

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