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21m+100=-10+11
We move all terms to the left:
21m+100-(-10+11)=0
We add all the numbers together, and all the variables
21m+100-1=0
We add all the numbers together, and all the variables
21m+99=0
We move all terms containing m to the left, all other terms to the right
21m=-99
m=-99/21
m=-4+5/7
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