7a=(-5a)

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Solution for 7a=(-5a) equation: 



7a=(-5a)

We move all terms to the left:

7a-((-5a))=0



We calculate terms in parentheses: -((-5a)), so:

(-5a)

We get rid of parentheses

-5a

Back to the equation:

-(-5a)



We get rid of parentheses

7a+5a=0

We add all the numbers together, and all the variables

12a=0

a=0/12

a=0

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