Answer:
6
Explanation:
Sun of P and S = 140
Measure of S = 80
Measure of P = 5x + 30
5x + 30 + 80 = 140
5x + 110 = 140
5x = 140 - 110
5x = 30
x = 30 รท 5
x = 6
x=10
P+S=140
(5x+30)+80=140
5x+30=80
5x=50
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