4(a=2)=20

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Solution for 4(a=2)=20 equation: 



4(a=2)=20

We move all terms to the left:

4(a-(2))=0

We multiply parentheses

4a-8=0

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

4a=8

a=8/4

a=2

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