7*(1+3m)=49

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Solution for 7*(1+3m)=49 equation: 



7(1+3m)=49

We move all terms to the left:

7(1+3m)-(49)=0

We add all the numbers together, and all the variables

7(3m+1)-49=0

We multiply parentheses

21m+7-49=0

We add all the numbers together, and all the variables

21m-42=0

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

21m=42

m=42/21

m=2

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