Answer:
P = s1+s2+s3
P = (x+10)+(7x-2)+(3x+5)
P = (x+7x+3x) + (10-2+5)
P = 11x+13 ans
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Answer:
P = s1+s2+s3
P = (x+10)+(7x-2)+(3x+5)
P = (x+7x+3x) + (10-2+5)
P = 11x+13 ans