4(r-6)=8(r-20)

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Solution for 4(r-6)=8(r-20) equation: 



4(r-6)=8(r-20)

We move all terms to the left:

4(r-6)-(8(r-20))=0

We multiply parentheses

4r-(8(r-20))-24=0



We calculate terms in parentheses: -(8(r-20)), so:

8(r-20)

We multiply parentheses

8r-160

Back to the equation:

-(8r-160)



We get rid of parentheses

4r-8r+160-24=0

We add all the numbers together, and all the variables

-4r+136=0

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

-4r=-136

r=-136/-4

r=+34

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