MatemáticasBásico1 respuestas

5x - 6z = - 173x - 4y + 5z = - 12x = - 6?

5x - 6z = - 17 3x - 4y + 5z = - 1 2x = - 6.

En resumen

2x = - 6 x = - 3 . 5x - 6z = - 17 5 ( - 3) - 6z = - 17 - 15 + 17 = 6z 2 = 6z 1 / 3 = z . 3x - 4y + 5z = - 1 3 ( - 3) - 4y + 5 (1 / 3) = - 1 - 9 - 4y + (5 / 3) = - 1 - 9 + 1 + (5 / 3) = 4y - 8 + (5 / 3) = 4y - 19 / 3 = 4y - 19 / 12 = y.

Mejor respuesta

Zoilacerda7668
8

2x = - 6

x = - 3

.

5x - 6z = - 17

5 ( - 3) - 6z = - 17 - 15 + 17 = 6z

2 = 6z

1 / 3 = z

.

3x - 4y + 5z = - 1

3 ( - 3) - 4y + 5 (1 / 3) = - 1 - 9 - 4y + (5 / 3) = - 1 - 9 + 1 + (5 / 3) = 4y - 8 + (5 / 3) = 4y - 19 / 3 = 4y - 19 / 12 = y.