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x in (-oo:+oo)
x/4-8 > -11 // + 11
x/4-8+11 > 0
1/4*x+3 > 0 // - 3
1/4*x > -3 // : 1/4
x > -3/1/4
x > -12
x in (-12:+oo)
(-12:+oo)
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