15=-5(1-m)-2(1-m)

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Solution for 15=-5(1-m)-2(1-m) equation: 



15=-5(1-m)-2(1-m)

We move all terms to the left:

15-(-5(1-m)-2(1-m))=0

We add all the numbers together, and all the variables

-(-5(-1m+1)-2(-1m+1))+15=0



We calculate terms in parentheses: -(-5(-1m+1)-2(-1m+1)), so:

-5(-1m+1)-2(-1m+1)

We multiply parentheses

5m+2m-5-2

We add all the numbers together, and all the variables

7m-7

Back to the equation:

-(7m-7)



We get rid of parentheses

-7m+7+15=0

We add all the numbers together, and all the variables

-7m+22=0

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

-7m=-22

m=-22/-7

m=3+1/7

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