2r+7=5r-8(r-4)

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Solution for 2r+7=5r-8(r-4) equation: 



2r+7=5r-8(r-4)

We move all terms to the left:

2r+7-(5r-8(r-4))=0



We calculate terms in parentheses: -(5r-8(r-4)), so:

5r-8(r-4)

We multiply parentheses

5r-8r+32

We add all the numbers together, and all the variables

-3r+32

Back to the equation:

-(-3r+32)



We get rid of parentheses

2r+3r-32+7=0

We add all the numbers together, and all the variables

5r-25=0

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

5r=25

r=25/5

r=5

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