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 = -2.3 // + 2.3
(1/2)*y+2.3 = 0
1/2*y+2.3 = 0 // - 2.3
1/2*y = -2.3 // : 1/2
y = -2.3/1/2
y = -4.6
y = -4.6
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