20r-3r+3r=20

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Solution for 20r-3r+3r=20 equation: 



20r-3r+3r=20

We move all terms to the left:

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

We add all the numbers together, and all the variables

20r-20=0

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

20r=20

r=20/20

r=1

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