7m-20=71

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Solution for 7m-20=71 equation: 



7m-20=71

We move all terms to the left:

7m-20-(71)=0

We add all the numbers together, and all the variables

7m-91=0

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

7m=91

m=91/7

m=13

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