Question

Resolva o sistema:

{x + y = 10
{x - y = 6

{x - y = 2
{2x + y = 1

{x - 2y = - 6
{2x + y = - 2

{2x + 3y = 8
{x - y = - 1

{2x - 3y = 3
{5x - y = 1

Answer 1

1. X = 8 Y = 2
2. X = 1 Y = - 1
3. X = - 2 Y = 2
4. X = 1 Y = 2
5. X = 0 Y = - 1