Question

resolva o sistema:
{x-y=6
2x+y=4

Answer 1

resolva o sistema:
{x-y=6
{2x+y=4
---------------(+)
3x=10
x=10/3

2x+y=4
2*(10/3)+y=4

2*2+y=4

4+y=4

y=0


s (10/3 0)