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x- 2/4 + x -4/6 ≥ 2/3 .....kedua ruas di kali 12
12x - 6 + 12x -8 ≥ 8
12x+12x -6-8 ≥ 8
24x - 14 ≥ 8
24x ≥ 8+14
24x ≥ 22
x ≥ 22/24
x ≥ 11/12
nomor 2 :
4 (x - 3) - 2 (x - 3) = 8
4x - 12 - 2x + 6 = 8
4x-2x -12 + 6 = 8
2x - 6 = 8
2x = 8+6
x = 14/2
x = 7