7m-19=128

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Solution for 7m-19=128 equation: 



7m-19=128

We move all terms to the left:

7m-19-(128)=0

We add all the numbers together, and all the variables

7m-147=0

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

7m=147

m=147/7

m=21

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