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x in (-oo:+oo)
(-1/4)*x+1/2 = x+7/4 // - x+7/4
(-1/4)*x-x+1/2-(7/4) = 0
(-1/4)*x-x+1/2-7/4 = 0
-5/4*x-5/4 = 0 // + 5/4
-5/4*x = 5/4 // : -5/4
x = 5/4/(-5/4)
x = -1
x = -1
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