18r+17=-15+20r

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Solution for 18r+17=-15+20r equation: 



18r+17=-15+20r

We move all terms to the left:

18r+17-(-15+20r)=0

We add all the numbers together, and all the variables

18r-(20r-15)+17=0

We get rid of parentheses

18r-20r+15+17=0

We add all the numbers together, and all the variables

-2r+32=0

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

-2r=-32

r=-32/-2

r=+16

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