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3 - 2x < 4
2x < 4 + 3
2x < 7
x < 7/2
3 - 2x > - 4
2x > -4 + 3
2x > -1
x > -1/2
HP = {-1/2, 7/2}
b |½x + 6| > 9
½x + 6 < -9
½x < -9 - 6
½x < -15
x < -15 ½
½x + 6 > 9
½x > 9 - 6
½x > 3
x > 3 ½
HP = {-15½, 3½}