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x in (-oo:+oo)
y/4+2 = (3*x)/8-3 // - (3*x)/8-3
y/4-((3*x)/8)+2+3 = 0
(-3/8)*x+y/4+2+3 = 0
1/4*y-3/8*x+5 = 0 // - 1/4*y+5
-3/8*x = -(1/4*y+5) // : -3/8
x = (-(1/4*y+5))/(-3/8)
x = 8/3*(1/4*y+5)
x = 8/3*(1/4*y+5)
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