Question

1
4x + 4 = 2x - x + 1
2
3x + 9 = -5x - 15
resuelvanlo​

Answer 1

Respuesta:

$14x + 4 = 2x - x + 12 \\ 14x + 4 = x + 12 \\ 14 - x = 12 - 4 \\ 13x = 8 \\ x = \frac{8}{13} \\ \\ \\ 3x + 9 = - 5x - 15 \\ 3x + 5x = - 15 - 9 \\ 8x = - 24 \\ x = - 24 \div 8 \\ x = - 3$