-40+6r=4(7r-1)+8

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Solution for -40+6r=4(7r-1)+8 equation: 



-40+6r=4(7r-1)+8

We move all terms to the left:

-40+6r-(4(7r-1)+8)=0



We calculate terms in parentheses: -(4(7r-1)+8), so:

4(7r-1)+8

We multiply parentheses

28r-4+8

We add all the numbers together, and all the variables

28r+4

Back to the equation:

-(28r+4)



We get rid of parentheses

6r-28r-4-40=0

We add all the numbers together, and all the variables

-22r-44=0

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

-22r=44

r=44/-22

r=-2

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