Question

encuentra la solución -4(1+3x)[=12

Answer 1

- 4 (1 + 3x) = 12
- 4 - 12x = 12
- 12x = 12 + 4
- 12x = 16
x = 16/-12 <== Simplificar. Dividir entre 4.
x = - 4/3 <== Valor de x.

Comprobar:
- 4 (1 + 3x) = 12
- 4 (1 + 3(- 4/3) = 12
- 4 (1 - 12/3) = 12
- 4 (3/3 - 12/3) = 12
- 4 (- 9/3) = 12
- 4 (- 3) = 12
12 = 12 <== Correcto.

Att: Diana ❤