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5x - 8 + 12x = 9
17x = 9 + 8
17x = 17
x = 17/17
x = 1
2. 6 - (3x + 2) < 19
6 -3x - 2 < 19
4 - 3x < 19
-3x > 19-4
-3x > 15
x > 15/ -3
x > -5
#tanda < dan > kurang tanda _ nya