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6(2y + 4)+ 4= 96
12y + 48 = 96
12y = 96 - 48
y = 48 : 12
y = 4
18/3x-3 = 24/48
24(3x - 3) = 864
72x - 72 = 864
72x = 864 + 72
x = 936 : 72
x = 13
x - y = 13 - 4 = 9
jawaban : b. 9
(3X-3)/18 = 48/24 (kali silang)
3X-3 = 36
3x=39
x=39/3=13
perbandingan kedua
(2y+4)/36 = (2y+8)/48 (kali silang)
96y + 192 = 72y + 288
24y = 96
y= 96/24= 4
Jadi x-y=13-4=9