-4(1+5r)=-84

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Solution for -4(1+5r)=-84 equation: 



-4(1+5r)=-84

We move all terms to the left:

-4(1+5r)-(-84)=0

We add all the numbers together, and all the variables

-4(5r+1)-(-84)=0

We add all the numbers together, and all the variables

-4(5r+1)+84=0

We multiply parentheses

-20r-4+84=0

We add all the numbers together, and all the variables

-20r+80=0

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

-20r=-80

r=-80/-20

r=+4

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