5x - ( - 3) + ( - 9) = 4x - ( - 7 + 1)?
5x - ( - 3) + ( - 9) = 4x - ( - 7 + 1).
5Lauragi
5x - ( - 3) + ( - 9) = 4x - ( - 7 + 1).
En resumen
5x - ( - 3) + ( - 9) = 4x - ( - 7 + 1) 5x + 3 - 9 = 4x + 6 5x - 6 = 4x + 6 5x - 4x = - 6 + 6 X = 0.
Leonardosalazar
5x - ( - 3) + ( - 9) = 4x - ( - 7 + 1)
5x + 3 - 9 = 4x + 6
5x - 6 = 4x + 6
5x - 4x = - 6 + 6
X = 0.