4a - 8
4(a - 2)
3(a + 3) = 9
a = 0
3 + x < 2
x < -1
21b - 14
7(3b -2)
4(2x + 1) = 8
x = 1/2
4a > 12
a > 3
24x - 14x
2x(12 - 7)
-1 + (-3 + x) = -4
x = 0
-5x < 20
x > -4
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