12.5=-2.5(m+8)

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Solution for 12.5=-2.5(m+8) equation: 



12.5=-2.5(m+8)

We move all terms to the left:

12.5-(-2.5(m+8))=0



We calculate terms in parentheses: -(-2.5(m+8)), so:

-2.5(m+8)

We multiply parentheses

-2.5m-20

Back to the equation:

-(-2.5m-20)



We get rid of parentheses

2.5m+20+12.5=0

We add all the numbers together, and all the variables

2.5m+32.5=0

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

2.5m=-32.5

m=-32.5/2.5

m=-13

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