If it's not what You are looking for type in the equation solver your own equation and let us solve it.
y in (-oo:+oo)
y = 2/5-8 // - 2/5-8
y-(2/5)+8 = 0
y-2/5+8 = 0
y+38/5 = 0 // - 38/5
y = -38/5
y = -38/5
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