7(3+a)=64

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Solution for 7(3+a)=64 equation: 



7(3+a)=64

We move all terms to the left:

7(3+a)-(64)=0

We add all the numbers together, and all the variables

7(a+3)-64=0

We multiply parentheses

7a+21-64=0

We add all the numbers together, and all the variables

7a-43=0

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

7a=43

a=43/7

a=6+1/7

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