Question

х+2y = 5
3х - 5y = 4​

Answer 1

Resposta:

x=5-2y x= 5-2y

3(5-2y) - 5y= 4 x= 5-2

15-6y-5y=4 x=3

-11y= 4-15

-11y= -11 (-1)

11y=11

y=1