Question 655525
2x-y=4


-y=4-2x


-y = -2x + 4


y = 2x - 4



9x - 4y = 19


9x - 4(2x - 4) = 19


9x - 8x + 16 = 19


x + 16 = 19


x = 19 - 16


x = 3


Now that you have the solution for x, use this to find the solution for y.