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/4 = 12.28 // - 12.28
y/4-12.28 = 0
1/4*y-12.28 = 0 // + 12.28
1/4*y = 12.28 // : 1/4
y = 12.28/1/4
y = 49.12
y = 49.12
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