2(5r-10)=8(r+7)

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Solution for 2(5r-10)=8(r+7) equation: 



2(5r-10)=8(r+7)

We move all terms to the left:

2(5r-10)-(8(r+7))=0

We multiply parentheses

10r-(8(r+7))-20=0



We calculate terms in parentheses: -(8(r+7)), so:

8(r+7)

We multiply parentheses

8r+56

Back to the equation:

-(8r+56)



We get rid of parentheses

10r-8r-56-20=0

We add all the numbers together, and all the variables

2r-76=0

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

2r=76

r=76/2

r=38

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