If it's not what You are looking for type in the equation solver your own equation and let us solve it.
n in (-oo:+oo)
(1/2)*n = -2.6 // + 2.6
(1/2)*n+2.6 = 0
1/2*n+2.6 = 0 // - 2.6
1/2*n = -2.6 // : 1/2
n = -2.6/1/2
n = -5.2
n = -5.2
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