Respuesta :

this is an equation in one variable and has only one solution

14x + 2 = 12x ( subtract 12x from both sides )

2x + 2 = 0 ( subtract 2 from both sides )

2x = - 2 ( divide both sides by 2 )

x = [tex]\frac{-2}{2}[/tex] = - 1 ← one solution

The equation 14x + 2 = 12x has only one solution.

14x + 2 = 12x

subtract 12x from both sides

14x - 12x + 2 = 12x - 12x

2x + 2 = 0

subtract 2 from both sides

2x + 2 - 2 = 0 - 2

2x = - 2

divide both sides by 2

2x / 2 = -2 / 2

x = -1

Therefore, the equation have only one solution.

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