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2m/5+21=m
We move all terms to the left:
2m/5+21-(m)=0
We add all the numbers together, and all the variables
-1m+2m/5+21=0
We multiply all the terms by the denominator
-1m*5+2m+21*5=0
We add all the numbers together, and all the variables
2m-1m*5+105=0
Wy multiply elements
2m-5m+105=0
We add all the numbers together, and all the variables
-3m+105=0
We move all terms containing m to the left, all other terms to the right
-3m=-105
m=-105/-3
m=+35
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