2r+1=-9

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Solution for 2r+1=-9 equation:



2r+1=-9
We move all terms to the left:
2r+1-(-9)=0
We add all the numbers together, and all the variables
2r+10=0
We move all terms containing r to the left, all other terms to the right
2r=-10
r=-10/2
r=-5

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