8(-7+7m)=280

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Solution for 8(-7+7m)=280 equation: 



8(-7+7m)=280

We move all terms to the left:

8(-7+7m)-(280)=0

We add all the numbers together, and all the variables

8(7m-7)-280=0

We multiply parentheses

56m-56-280=0

We add all the numbers together, and all the variables

56m-336=0

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

56m=336

m=336/56

m=6

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