155=-8m+3(5-4m)

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Solution for 155=-8m+3(5-4m) equation: 



155=-8m+3(5-4m)

We move all terms to the left:

155-(-8m+3(5-4m))=0

We add all the numbers together, and all the variables

-(-8m+3(-4m+5))+155=0



We calculate terms in parentheses: -(-8m+3(-4m+5)), so:

-8m+3(-4m+5)

We multiply parentheses

-8m-12m+15

We add all the numbers together, and all the variables

-20m+15

Back to the equation:

-(-20m+15)



We get rid of parentheses

20m-15+155=0

We add all the numbers together, and all the variables

20m+140=0

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

20m=-140

m=-140/20

m=-7

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