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44cm= 2((3x+4) + (2x+3))
44cm= 2(5x+7)
44cm= 10x+14
10x= 44-14
10x= 30
x= 30 : 10
x= 3cm
panjang= (3x+4)= (3(3)+4)= 13cm
lebar= (2x+3)= (2(3)+3)= 9cm
44 = 2 ( 3x + 4 + 2x + 3 )
44/2 = 5x + 7
22 = 5x + 7
22 - 7 = 5x
5x = 15
x = 15/5
x = 3 cm
Panjangnya:
= 3x + 4
= 3(3) + 4
= 9 + 4
= 13 cm
Lebarnya
= 2x + 3
= 2(3) + 3
= 6 + 3
= 9 cm