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y in (-oo:+oo)
2/3 > -4*y-(25/3) // + -4*y-(25/3)
2/3-(-4*y)+25/3 > 0
4*y+2/3+25/3 > 0
4*y+9 > 0 // - 9
4*y > -9 // : 4
y > -9/4
y in (-9/4:+oo)
(-9/4:+oo)
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