-7r+31=6(r+1)-8r

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Solution for -7r+31=6(r+1)-8r equation: 



-7r+31=6(r+1)-8r

We move all terms to the left:

-7r+31-(6(r+1)-8r)=0



We calculate terms in parentheses: -(6(r+1)-8r), so:

6(r+1)-8r

We add all the numbers together, and all the variables

-8r+6(r+1)

We multiply parentheses

-8r+6r+6

We add all the numbers together, and all the variables

-2r+6

Back to the equation:

-(-2r+6)



We get rid of parentheses

-7r+2r-6+31=0

We add all the numbers together, and all the variables

-5r+25=0

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

-5r=-25

r=-25/-5

r=+5

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