8+5r=3r+20

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Solution for 8+5r=3r+20 equation: 



8+5r=3r+20

We move all terms to the left:

8+5r-(3r+20)=0

We get rid of parentheses

5r-3r-20+8=0

We add all the numbers together, and all the variables

2r-12=0

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

2r=12

r=12/2

r=6

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