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x in (-oo:+oo)
-3*x-2 = -x-5/4 // + -x-5/4
x-3*x-(-5/4)-2 = 0
x-3*x+5/4-2 = 0
-2*x-3/4 = 0 // + 3/4
-2*x = 3/4 // : -2
x = 3/4/(-2)
x = -3/8
x = -3/8
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