8
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20 = 4p + 5 +p 20 = 5p + 5 5p = 20 - 5 = 15 5p = 15 p = 15/5 = 3
7p + 2 = 5p + 8 7p - 5p = 8 - 2 2p = 6 p = 3
10p + 5p - p = 15p - p = 14p
5p+18 = 8p Subtract 5p from both sides: 18 = 3p Divide both sides by 3: 6 = p or as p = 6
p=1