Question

[1] 4x + 2y = 6 [2] 2x - 5y = -9​

Answer 1

Explicación paso a paso :

[1] 4x + 2y = 6 [2] 2x - 5y = -9​

x + y = 4 , x - y = 2

4x + 4y = 1 , 6x - y = 1

x - y = 9 , x + y = 6