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x + x/2 +x/3 = - 11
efectuar suma de fracciones
1/6(6x + 3x + 2x) = - 11 6 = mcm(1, 2, 3)
multiplicando todo por 6
11x = - 66
x = - 66/11
x = - 6
5x - 5/x + 1 = - 3
reduciendo términos semejantes
5x - 5/x = - 3 - 1
5x - 5/x = - 4
multiplicando todo por x
5x^2 - 5 = - 4x
ecuación cuadrática, Debe ser nula para obtener sus raices
5x^2 + 4x - 5 = 0
Fórmula general
x/2 + 3x/4 + x/6 = x + 3
igual primera
1/12(6x + 9x + 2x) = x + 3 12 = mcm(2, 4, 6)
17x = 12(x + 3)
17x = 12x + 36
17x - 12x = 36
5x = 36
x = 36/5