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x in (-oo:+oo)
7*x-(9/4) < 37/7 // - 37/7
7*x-(9/4)-(37/7) < 0
7*x-9/4-37/7 < 0
7*x-211/28 < 0 // + 211/28
7*x < 211/28 // : 7
x < 211/28/7
x < 211/196
x in (-oo:211/196)
(-oo:211/196)
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