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

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



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

We move all terms to the left:

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

We multiply parentheses

-16r-(2r+5(-4r-8))-40=0



We calculate terms in parentheses: -(2r+5(-4r-8)), so:

2r+5(-4r-8)

We multiply parentheses

2r-20r-40

We add all the numbers together, and all the variables

-18r-40

Back to the equation:

-(-18r-40)



We get rid of parentheses

-16r+18r+40-40=0

We add all the numbers together, and all the variables

2r=0

r=0/2

r=0

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