Question

(x - 2y = -3
2x + y = 4

Answer 1

{x - 2y = -3

{2x + y = 4

x = -3 + 2y

2×(-3 + 2y) + y = 4

-6 + 4y + y = 4

5y = 10

y = 2

x = -3 + 2×2 = -3 + 4 = 1

{x = 1

{y = 2