Solve for p
p=150
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13600-50p-40p=100
Subtract 40p from both sides.
13600-90p=100
Combine -50p and -40p to get -90p.
-90p=100-13600
Subtract 13600 from both sides.
-90p=-13500
Subtract 13600 from 100 to get -13500.
p=\frac{-13500}{-90}
Divide both sides by -90.
p=150
Divide -13500 by -90 to get 150.
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