31+6r=-7(5-4r)

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Solution for 31+6r=-7(5-4r) equation: 



31+6r=-7(5-4r)

We move all terms to the left:

31+6r-(-7(5-4r))=0

We add all the numbers together, and all the variables

6r-(-7(-4r+5))+31=0



We calculate terms in parentheses: -(-7(-4r+5)), so:

-7(-4r+5)

We multiply parentheses

28r-35

Back to the equation:

-(28r-35)



We get rid of parentheses

6r-28r+35+31=0

We add all the numbers together, and all the variables

-22r+66=0

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

-22r=-66

r=-66/-22

r=+3

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