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x in (-oo:+oo)
(2/3)*(x/4-1) = (3/4)*x-(1/2) // - (3/4)*x-(1/2)
(2/3)*(x/4-1)-((3/4)*x)+1/2 = 0
(2/3)*(x/4-1)+(-3/4)*x+1/2 = 0
2/3*(1/4*x-1)+(-3*x)/4+1/2 = 0
(2/3*2*4*(1/4*x-1))/(2*4)+(-3*2*x)/(2*4)+(1*4)/(2*4) = 0
2/3*2*4*(1/4*x-1)-3*2*x+1*4 = 0
4-14/3*x-16/3 = 0
-14/3*x-4/3 = 0
(-14/3*x-4/3)/(2*4) = 0
(-14/3*x-4/3)/(2*4) = 0 // * 2*4
-14/3*x-4/3 = 0
-14/3*x-4/3 = 0 // + 4/3
-14/3*x = 4/3 // : -14/3
x = 4/3/(-14/3)
x = -2/7
x = -2/7
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