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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

4(-1r+5)-(2(5r-5))-2=0

We multiply parentheses

-4r-(2(5r-5))+20-2=0



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

2(5r-5)

We multiply parentheses

10r-10

Back to the equation:

-(10r-10)



We add all the numbers together, and all the variables

-4r-(10r-10)+18=0

We get rid of parentheses

-4r-10r+10+18=0

We add all the numbers together, and all the variables

-14r+28=0

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

-14r=-28

r=-28/-14

r=+2

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