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)
(1/2)*y = 1 // - 1
(1/2)*y-1 = 0
1/2*y-1 = 0 // + 1
1/2*y = 1 // : 1/2
y = 1/1/2
y = 2
y = 2
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