4(1-5r)=64

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Solution for 4(1-5r)=64 equation: 



4(1-5r)=64

We move all terms to the left:

4(1-5r)-(64)=0

We add all the numbers together, and all the variables

4(-5r+1)-64=0

We multiply parentheses

-20r+4-64=0

We add all the numbers together, and all the variables

-20r-60=0

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

-20r=60

r=60/-20

r=-3

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