Respuesta :

Answer:

1. X=-3, Y=0

2. all real numbers

Step-by-step explanation:

1.

2x+x+3=-6

3x+3=-6

3x=-9

x=-3

y=-3+3

y=0

2.

6x-2(3x-6)=12

6x-6x+12=12

0=0

All real numbers