Solve - 3x + 4y = 26 and x - 4y = - 6

x - 4y = - 6

x - 4y+4y = - 6+4y

x= - 6+4y

- 3x + 4y = 26

- 3( - 6+4y) + 4y = 26

- 3( - 6) (-3)(+4y) + 4y = 26

18-12y + 4y = 26

18-8y= 26

18-8y-18= 26-18

-8y=8

-8y/-8=8/-8

y=-1

x= - 6+4y

x= - 6+4(-1)

x= - 6-4

x=-10