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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We use the square of the difference formula

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



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

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

We multiply parentheses

-5m+2m

We add all the numbers together, and all the variables

-3m

Back to the equation:

-(-3m)



We get rid of parentheses

3m+15=0

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

3m=-15

m=-15/3

m=-5

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