7a+2=-2(a-1)

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Solution for 7a+2=-2(a-1) equation: 



7a+2=-2(a-1)

We move all terms to the left:

7a+2-(-2(a-1))=0



We calculate terms in parentheses: -(-2(a-1)), so:

-2(a-1)

We multiply parentheses

-2a+2

Back to the equation:

-(-2a+2)



We get rid of parentheses

7a+2a-2+2=0

We add all the numbers together, and all the variables

9a=0

a=0/9

a=0

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