20+3m-(12-8m)=15

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Solution for 20+3m-(12-8m)=15 equation: 



20+3m-(12-8m)=15

We move all terms to the left:

20+3m-(12-8m)-(15)=0

We add all the numbers together, and all the variables

3m-(-8m+12)+20-15=0

We add all the numbers together, and all the variables

3m-(-8m+12)+5=0

We get rid of parentheses

3m+8m-12+5=0

We add all the numbers together, and all the variables

11m-7=0

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

11m=7

m=7/11

m=7/11

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