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94=2(5x+2+2x+3)
47=7x+5
47-5=7x
42=7x
6=x
panjang = 5.6+2 = 32
lebar =2.6+3= 15
jawabannya c
94 = 2(5x+2) + 2(2x+3)
94 = 10x+4 + 4x+6
94 = 14x + 10
14x = 84
x = 6 cm
Panjang = 5x+2 = 5(6)+2 = 30+2 = 32 cm
Lebar = 2x+3 = 2(6)+3 = 12+3 = 15 cm