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-1 ( x - 1 ) ≥
-1x - (-1) ≥
-1x + 1 ≥
4 ( -1x + 1 ) ≥ 4 ( )
-4x + 4 ≥ x - 6
-4x - x ≥ -6 - 4
-5x ≥ -10
x ≥ -10 : (-5)
x ≤ 2
HP = { ... , -1 , 0 , 1 , 2 }
-4x + 3 + 4 = x - 6/4
-4x + 7 = x - 6/4
4(-4x + 7) = x - 6
-16x + 28 = x - 6
28 + 6 = x + 16x
34 = 17x
x = 34/17
x = 2
*maaf klo salah*