Solve for r
r=17
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98-16r+r=-157
Add r to both sides.
98-15r=-157
Combine -16r and r to get -15r.
-15r=-157-98
Subtract 98 from both sides.
-15r=-255
Subtract 98 from -157 to get -255.
r=\frac{-255}{-15}
Divide both sides by -15.
r=17
Divide -255 by -15 to get 17.
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