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-(1/2) = -7/8 // + -7/8
y-(1/2)-(-7/8) = 0
y-1/2+7/8 = 0
y+3/8 = 0 // - 3/8
y = -3/8
y = -3/8
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