147=7-7m

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Solution for 147=7-7m equation: 



147=7-7m

We move all terms to the left:

147-(7-7m)=0

We add all the numbers together, and all the variables

-(-7m+7)+147=0

We get rid of parentheses

7m-7+147=0

We add all the numbers together, and all the variables

7m+140=0

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

7m=-140

m=-140/7

m=-20

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