Question

Solve the system of equations: x - 2y = 9 and 2x + 2y = 6.

Answer 1

Answer:

$x - 2y = 9$

$x + y = 3$

$x - 2y = 9$

$- x - y = - 3$

$- 3y = 6$

$y = -2$

$x - 2 = 3$

$x = 5$