85=5(3a-4)

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Solution for 85=5(3a-4) equation: 



85=5(3a-4)

We move all terms to the left:

85-(5(3a-4))=0



We calculate terms in parentheses: -(5(3a-4)), so:

5(3a-4)

We multiply parentheses

15a-20

Back to the equation:

-(15a-20)



We get rid of parentheses

-15a+20+85=0

We add all the numbers together, and all the variables

-15a+105=0

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

-15a=-105

a=-105/-15

a=+7

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