80=8(a+5)

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Solution for 80=8(a+5) equation: 



80=8(a+5)

We move all terms to the left:

80-(8(a+5))=0



We calculate terms in parentheses: -(8(a+5)), so:

8(a+5)

We multiply parentheses

8a+40

Back to the equation:

-(8a+40)



We get rid of parentheses

-8a-40+80=0

We add all the numbers together, and all the variables

-8a+40=0

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

-8a=-40

a=-40/-8

a=+5

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