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x in (-oo:+oo)
(1/4)*x-(7/8) = (-3/4)*x-(1/4) // - (-3/4)*x-(1/4)
(1/4)*x-((-3/4)*x)-(7/8)+1/4 = 0
(1/4)*x+(3/4)*x-7/8+1/4 = 0
x-5/8 = 0 // + 5/8
x = 5/8
x = 5/8
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