4r+16r+20=-20+10r

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Solution for 4r+16r+20=-20+10r equation: 



4r+16r+20=-20+10r

We move all terms to the left:

4r+16r+20-(-20+10r)=0

We add all the numbers together, and all the variables

4r+16r-(10r-20)+20=0

We add all the numbers together, and all the variables

20r-(10r-20)+20=0

We get rid of parentheses

20r-10r+20+20=0

We add all the numbers together, and all the variables

10r+40=0

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

10r=-40

r=-40/10

r=-4

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