Question

$x+y=8\\x-y=10$

Answer 1

Respuesta:

x + y = 8   I Se eliminan las "y" I

x - y = 10

2x = 18

x = 9... ;)

Answer 2

Respuesta:

x+y=8

 Slope = -2.000/2.000 = -1.000

 x-intercept = 8/1 = 8.00000

 y-intercept = 8/1 = 8.00000

x-y=10

 Slope = 1

 x-intercept = 10/1 = 10.00000

 y-intercept = 10/-1 = -10.00000

Explicación paso a paso: