7(m-2)-2(m-5)=21

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Solution for 7(m-2)-2(m-5)=21 equation: 



7(m-2)-2(m-5)=21

We move all terms to the left:

7(m-2)-2(m-5)-(21)=0

We multiply parentheses

7m-2m-14+10-21=0

We add all the numbers together, and all the variables

5m-25=0

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

5m=25

m=25/5

m=5

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