-4(1+4r)+6r=-84

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Solution for -4(1+4r)+6r=-84 equation: 



-4(1+4r)+6r=-84

We move all terms to the left:

-4(1+4r)+6r-(-84)=0

We add all the numbers together, and all the variables

-4(4r+1)+6r-(-84)=0

We add all the numbers together, and all the variables

6r-4(4r+1)+84=0

We multiply parentheses

6r-16r-4+84=0

We add all the numbers together, and all the variables

-10r+80=0

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

-10r=-80

r=-80/-10

r=+8

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