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2x - 6 ≤ -3x - 3 + 7
2x - 6 ≤ -3x + 4
2x + 3x ≤ 4 + 6
5x ≤ 10
x ≤ 10 : 5
x ≤ 2
maka, x = {.....-2,-1,0,1,2)