-2m+21-8(m-2)=8m-(7m-8)-6m+4

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Solution for -2m+21-8(m-2)=8m-(7m-8)-6m+4 equation: 



-2m+21-8(m-2)=8m-(7m-8)-6m+4

We move all terms to the left:

-2m+21-8(m-2)-(8m-(7m-8)-6m+4)=0

We multiply parentheses

-2m-8m-(8m-(7m-8)-6m+4)+16+21=0



We calculate terms in parentheses: -(8m-(7m-8)-6m+4), so:

8m-(7m-8)-6m+4

We add all the numbers together, and all the variables

2m-(7m-8)+4

We get rid of parentheses

2m-7m+8+4

We add all the numbers together, and all the variables

-5m+12

Back to the equation:

-(-5m+12)



We add all the numbers together, and all the variables

-10m-(-5m+12)+37=0

We get rid of parentheses

-10m+5m-12+37=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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