2(2r+5)=20

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Solution for 2(2r+5)=20 equation: 



2(2r+5)=20

We move all terms to the left:

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

We multiply parentheses

4r+10-20=0

We add all the numbers together, and all the variables

4r-10=0

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

4r=10

r=10/4

r=2+1/2

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