21+7m=8(m+2)

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Solution for 21+7m=8(m+2) equation: 



21+7m=8(m+2)

We move all terms to the left:

21+7m-(8(m+2))=0



We calculate terms in parentheses: -(8(m+2)), so:

8(m+2)

We multiply parentheses

8m+16

Back to the equation:

-(8m+16)



We get rid of parentheses

7m-8m-16+21=0

We add all the numbers together, and all the variables

-1m+5=0

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

-m=-5

m=-5/-1

m=+5

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