42m+18=40m+30

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Solution for 42m+18=40m+30 equation: 



42m+18=40m+30

We move all terms to the left:

42m+18-(40m+30)=0

We get rid of parentheses

42m-40m-30+18=0

We add all the numbers together, and all the variables

2m-12=0

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

2m=12

m=12/2

m=6

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