Solve for p
p = \frac{19}{10} = 1\frac{9}{10} = 1.9
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-20+5p+5p=-1
Use the distributive property to multiply -5 by 4-p.
-20+10p=-1
Combine 5p and 5p to get 10p.
10p=-1+20
Add 20 to both sides.
10p=19
Add -1 and 20 to get 19.
p=\frac{19}{10}
Divide both sides by 10.
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