Question

¿Cuál es el procedimiento correcto para resolver la ecuación: 3(x -2) = -4(-x + 2)? A) 3(x – 2) = -4(-x + 2) 3x – 2 = 4x + 2 3x - 4x = 2 + 2 -x = 4 (-1)(-x) = (-1)(4) x = -4 B) 3(x – 2) = -4(-x + 2) 3x – 6 = 4x – 8 3x – 4x = -8 + 6 -x = -2 (-1)(-x) = (-1)(-2) x = 2 C) 3(x – 2) = -4(-x + 2) 3x – 6 = 4x – 8 3x – 4x = -8 - 6-x = -14 (-1)(-x) = (-1)(-14) x = 14 D) 3(x – 2) = -4(-x + 2) 3x – 6 = 4x – 8 3x – 4x = -8 + 6 -x = 2 (-1)(-x) = (-1)(2) x = -2

Answer 1

Respuesta:

B

Explicación paso a paso:

3 (x-2) = - 4(-x+2)

3x - 6 = 4x - 8

3x - 4x = - 8 + 6

-x = - 2 todo por menos 1

X = 2