-135=5(1-4r)

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Solution for -135=5(1-4r) equation: 



-135=5(1-4r)

We move all terms to the left:

-135-(5(1-4r))=0

We add all the numbers together, and all the variables

-(5(-4r+1))-135=0



We calculate terms in parentheses: -(5(-4r+1)), so:

5(-4r+1)

We multiply parentheses

-20r+5

Back to the equation:

-(-20r+5)



We get rid of parentheses

20r-5-135=0

We add all the numbers together, and all the variables

20r-140=0

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

20r=140

r=140/20

r=7

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