20r+5r-9r+2=20

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Solution for 20r+5r-9r+2=20 equation:



20r+5r-9r+2=20
We move all terms to the left:
20r+5r-9r+2-(20)=0
We add all the numbers together, and all the variables
16r-18=0
We move all terms containing r to the left, all other terms to the right
16r=18
r=18/16
r=1+1/8

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