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 add all the numbers together, and all the variables

-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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