7(4a)=5(-2a)

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Solution for 7(4a)=5(-2a) equation: 



7(4a)=5(-2a)

We move all terms to the left:

7(4a)-(5(-2a))=0



We calculate terms in parentheses: -(5(-2a)), so:

5(-2a)

We multiply parentheses

-10a

Back to the equation:

-(-10a)



We get rid of parentheses

74a+10a=0

We add all the numbers together, and all the variables

84a=0

a=0/84

a=0

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