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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-2r-(2(-2r+4))-10=0



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

2(-2r+4)

We multiply parentheses

-4r+8

Back to the equation:

-(-4r+8)



We get rid of parentheses

-2r+4r-8-10=0

We add all the numbers together, and all the variables

2r-18=0

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

2r=18

r=18/2

r=9

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