7m+4m-20=80-9m

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Solution for 7m+4m-20=80-9m equation: 



7m+4m-20=80-9m

We move all terms to the left:

7m+4m-20-(80-9m)=0

We add all the numbers together, and all the variables

7m+4m-(-9m+80)-20=0

We add all the numbers together, and all the variables

11m-(-9m+80)-20=0

We get rid of parentheses

11m+9m-80-20=0

We add all the numbers together, and all the variables

20m-100=0

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

20m=100

m=100/20

m=5

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