2r+3+21=-9

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Solution for 2r+3+21=-9 equation:



2r+3+21=-9
We move all terms to the left:
2r+3+21-(-9)=0
We add all the numbers together, and all the variables
2r+33=0
We move all terms containing r to the left, all other terms to the right
2r=-33
r=-33/2
r=-16+1/2

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