Question

3. Aplica la propiedad distributiva y resuelve.
a. 7(x - 5) – x = 3
b. -3 (2x - 5) -5x = 3x
c. 7 (x - 2) – 6x + 1 = 3 – 4x
d. 4x + 2 (2x - 5) = (x - 3) – (8 - x)
e. 9x – 2 (x – 4x) = 3x – 2 (3 - x)
porfa resuelta paso a paso doy corazon 20 puntos

Answer 1

Respuesta:

$7x - 35 - x = 3 \\ 6x = 38 \\ x = \frac{19}{3}$

$- 3(2x - 5) - 5x = 3x \\ - 6x + 15 - 5x = 3x \\ 15 = 3x + 11x \\ 15 = 14x \\ \frac{15}{14} = x$

$7(x - 2) - 6x + 1 = 3 - 4x \\ 7x - 14 - 6x + 1 = 3 - 4x \\ x + 4x = 3 + 13 \\ 5x = 16 \\ x = \frac{16}{5}$

$4x + 2(2x - 5) = (x - 3) - (8 - x) \\ 4x + 4x - 10 = x - 3 - 8 + x \\ 8x - 2x = - 11 + 10 \\ 6x = - 1 \\ x = - \frac{1}{6}$

$9x - 2(x - 4x) = 3x - 2(3 - x) \\ 9x - 2x + 8x = 3x - 6 + 2x \\ 15x - 5x = - 6 \\ 10x = - 6 \\ x = - \frac{6}{10}$