Question

х-у=2. 2х-3у =-1. Помогите пж

Answer 1

x - y = 2

2x - 3y = -1

x = 2 + y

2 * (2+y) - 3y = -1

x = 2 + y

4 + 2y - 3y = -1

x = 2 + y

2y - 3y = -1 - 4

x = 2 + y

-y = -5

x = 2 + 5

y = 5

x = 7

y = 5

Ответ: x = 7; y = 5