4(-5+r)=-25+5r

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Solution for 4(-5+r)=-25+5r equation: 



4(-5+r)=-25+5r

We move all terms to the left:

4(-5+r)-(-25+5r)=0

We add all the numbers together, and all the variables

4(r-5)-(5r-25)=0

We multiply parentheses

4r-(5r-25)-20=0

We get rid of parentheses

4r-5r+25-20=0

We add all the numbers together, and all the variables

-1r+5=0

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

-r=-5

r=-5/-1

r=+5

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