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= 2x - x - 3x < -6 + 8
= x - 3x < 2
= -2x < 2
= 2 > 2x
= 1 > x
2. 5x - 6 ≥ 7x - 10
= -6 + 10 ≥ 7x - 5x
= 4 ≥ 2x
= 2 ≥ x
2x - x + 8 < 3x - 6
x + 8 < 3x - 6
-3x + x < -6 - 8
2x < -14
x< 7
jadi HP = ( x l x < 7)
5x - 6 ≥ 7x - 10
-7x + 5x ≥ -10 + 6
-2x ≥ -4
x ≥ 2
jadi HP = ( x l x ≥ 2 )