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