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2(5x-3) + 2(3x-1) = 20
10x - 6 + 6x - 2 = 20
10x + 6x = 20 + 6+ 2
16x = 28
x = 28/16 = 1,75 m
B.
p = 5x - 3
= 5(1,75 ) - 3
=8,75 - 3
= 5,75 m
l = 3x - 1
= 3(1,75) - 1
= 5,25 - 1
= 4,25 m
kalau salah saya akan koreksi