9m-11m-(-3m)+(-9)=-20

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Solution for 9m-11m-(-3m)+(-9)=-20 equation:



9m-11m-(-3m)+(-9)=-20
We move all terms to the left:
9m-11m-(-3m)+(-9)-(-20)=0
We add all the numbers together, and all the variables
-2m-(-3m)+11=0
We get rid of parentheses
-2m+3m+11=0
We add all the numbers together, and all the variables
m+11=0
We move all terms containing m to the left, all other terms to the right
m=-11

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