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x in (-oo:+oo)
3*(3-((3/4)*x)) = 1-((1/2)*x)+4 // - 1-((1/2)*x)+4
3*(3-((3/4)*x))+(1/2)*x-4-1 = 0
3*((-3/4)*x+3)+(1/2)*x-4-1 = 0
3*(3-3/4*x)+x/2-4-1 = 0
(2*3*(3-3/4*x))/2+x/2+(-4*2)/2+(-1*2)/2 = 0
2*3*(3-3/4*x)+x-4*2-1*2 = 0
18-7/2*x-8-2 = 0
10-7/2*x-2 = 0
8-7/2*x = 0
(8-7/2*x)/2 = 0
(8-7/2*x)/2 = 0 // * 2
8-7/2*x = 0
8-7/2*x = 0 // - 8
-7/2*x = -8 // : -7/2
x = -8/(-7/2)
x = 16/7
x = 16/7
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