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2x < 7+1
x < 8/2
x < 4
Hp {3,2,1,...}
b. 4x-2 > 2x+5
4x - 2 x > 5+2
2x > 7
x > 7/2
x > 3,5
Hp {4,5,6,...}
c. 2(x-3) < 3 (2x+1)
2x - 6 < 6x + 3
2x-6x < 3+9
-4x < 12
x > 12/-4
x > -3
Hp {-2,-1,0,1....}
2x - 1 + 1 < 7 + 1
2x/2 < 8/2
x < 4