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x in (-oo:+oo)
(3/4)*x = (2/3)*x-1 // - (2/3)*x-1
(3/4)*x-((2/3)*x)+1 = 0
(3/4)*x+(-2/3)*x+1 = 0
1/12*x+1 = 0 // - 1
1/12*x = -1 // : 1/12
x = -1/1/12
x = -12
x = -12
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