3(a=7)=-33

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Solution for 3(a=7)=-33 equation: 



3(a=7)=-33

We move all terms to the left:

3(a-(7))=0

We multiply parentheses

3a-21=0

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

3a=21

a=21/3

a=7

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