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x in (-oo:+oo)
y = (2*x)/3-5 // - (2*x)/3-5
y-((2*x)/3)+5 = 0
(-2/3)*x+y+5 = 0
y-2/3*x+5 = 0 // - y+5
-2/3*x = -(y+5) // : -2/3
x = (-(y+5))/(-2/3)
x = 3/2*(y+5)
x = 3/2*(y+5)
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