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x in (-oo:+oo)
1/2-(3*x) = 5*x+3/4 // - 5*x+3/4
1/2-(3*x)-(5*x)-(3/4) = 0
1/2-3*x-5*x-3/4 = 0
-8*x-1/4 = 0 // + 1/4
-8*x = 1/4 // : -8
x = 1/4/(-8)
x = -1/32
x = -1/32
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