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x in (-oo:+oo)
x-3 = (11/2)*(7-(5*x)) // - (11/2)*(7-(5*x))
x-((11/2)*(7-(5*x)))-3 = 0
(-11/2)*(7-5*x)+x-3 = 0
x-11/2*(7-5*x)-3 = 0
x-11/2*(7-5*x)-3 = 0
57/2*x-77/2-3 = 0
57/2*x-83/2 = 0
57/2*x-83/2 = 0
57/2*x-83/2 = 0 // + 83/2
57/2*x = 83/2 // : 57/2
x = 83/2/57/2
x = 83/57
x = 83/57
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