Question

Cuánto es

9x + 11y = -11?

Answer 1

Explicación paso a paso:

9x+11y=-11

11y= 11-9x

Y= 11-9x / -11

$y = - 1 - \frac {9}{11}$

$9x + 11( - 1 - \frac{9}{11} ) = - 11$

9x -20 = -11

9x = -11+20

9x = 9

X= 9/9

X=1

Respuesta: x = 1