Solve the following system of equations 4x + 5y = 5 and 8x + 5y = 25

4x + 5y = 5 / (-1)

8x + 5y = 25

-4x - 5y = - 5

8x + 5y = 25

-4x + 8x = - 5 + 25

4x = 20

x = 5

4x + 5y = 5

4*5 + 5y = 5

20 + 5y = 5

5y = 5 - 20

5y = - 15

y = - 3

8x + 5y = 25

8 * 5 + 5y = 25

40 + 5y = 25

5y = 25 - 40

5y = - 15

y = - 3