-m-18=-2(2m+3)

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Solution for -m-18=-2(2m+3) equation: 



-m-18=-2(2m+3)

We move all terms to the left:

-m-18-(-2(2m+3))=0

We add all the numbers together, and all the variables

-1m-(-2(2m+3))-18=0



We calculate terms in parentheses: -(-2(2m+3)), so:

-2(2m+3)

We multiply parentheses

-4m-6

Back to the equation:

-(-4m-6)



We get rid of parentheses

-1m+4m+6-18=0

We add all the numbers together, and all the variables

3m-12=0

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

3m=12

m=12/3

m=4

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