Respuesta :
Maybe try this 2x+y=16
3x-y=4
------------
Add the two equations to solve for "x":
5x = 20
x = 4
--------
Substitute to solve for "y":
2*4 + y = 16
y = 8
----------
Solution: (4,8)
3x-y=4
------------
Add the two equations to solve for "x":
5x = 20
x = 4
--------
Substitute to solve for "y":
2*4 + y = 16
y = 8
----------
Solution: (4,8)