2(r+10)=20

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Solution for 2(r+10)=20 equation: 



2(r+10)=20

We move all terms to the left:

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

We multiply parentheses

2r+20-20=0

We add all the numbers together, and all the variables

2r=0

r=0/2

r=0

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