If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
y = x-(5/2) // - x-(5/2)
y-x+5/2 = 0
y-x+5/2 = 0 // - y+5/2
-x = -(y+5/2) // * -1
x = y+5/2
x = y+5/2
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