20+2r=18+3r

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Solution for 20+2r=18+3r equation: 



20+2r=18+3r

We move all terms to the left:

20+2r-(18+3r)=0

We add all the numbers together, and all the variables

2r-(3r+18)+20=0

We get rid of parentheses

2r-3r-18+20=0

We add all the numbers together, and all the variables

-1r+2=0

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

-r=-2

r=-2/-1

r=+2

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