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

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Solution for -4(r+5)=-20-4r equation: 



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

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

We get rid of parentheses

-4r+4r+20-20=0

We add all the numbers together, and all the variables

=0

r=0/1

r=0

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