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x in (-oo:+oo)
(-1/4)*x-4 = (7/4)*x-3 // - (7/4)*x-3
(-1/4)*x-((7/4)*x)-4+3 = 0
(-1/4)*x+(-7/4)*x-4+3 = 0
-2*x-1 = 0 // + 1
-2*x = 1 // : -2
x = 1/(-2)
x = -1/2
x = -1/2
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