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y in (-oo:+oo)
y = -1*((3*e^1)/2) // + -1*((3*e^1)/2)
y-(-1*((3*e^1)/2)) = 0
y+(3*e)/2 = 0
y+(3*e)/2 = 0 // - (3*e)/2
y = -((3*e)/2)
y = (-3/2)*e
y = (-3/2)*e
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