6m+2m=21+m

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Solution for 6m+2m=21+m equation:



6m+2m=21+m
We move all terms to the left:
6m+2m-(21+m)=0
We add all the numbers together, and all the variables
6m+2m-(m+21)=0
We add all the numbers together, and all the variables
8m-(m+21)=0
We get rid of parentheses
8m-m-21=0
We add all the numbers together, and all the variables
7m-21=0
We move all terms containing m to the left, all other terms to the right
7m=21
m=21/7
m=3

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