19m-20=9m-12

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Solution for 19m-20=9m-12 equation: 



19m-20=9m-12

We move all terms to the left:

19m-20-(9m-12)=0

We get rid of parentheses

19m-9m+12-20=0

We add all the numbers together, and all the variables

10m-8=0

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

10m=8

m=8/10

m=4/5

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