Solve for r
r=-4
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2r+7=\frac{3}{-3}
Divide both sides by -3.
2r+7=-1
Divide 3 by -3 to get -1.
2r=-1-7
Subtract 7 from both sides.
2r=-8
Subtract 7 from -1 to get -8.
r=\frac{-8}{2}
Divide both sides by 2.
r=-4
Divide -8 by 2 to get -4.
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