If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
x = 5/1.66 // - 5/1.66
x-(5/1.66) = 0
x-3.01204819 = 0
x-3.01204819 = 0 // + 3.01204819
x = 3.01204819
x = 3.01204819
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