Solve 3x + 5y = - 8 and x - 5y = - 16

x - 5y = - 16

x - 5y+5y = - 16+5y

x=- 16+5y

3x + 5y = - 8

3(- 16+5y) + 5y = - 8

3(- 16) (3)(+5y) + 5y = - 8

-48+15y+5y=-8

-48+20y=-8

-48+20y+48=-8+48

20y=40

20y/20=40/20

y=2