Реши систему x=7 9x-y=11

To solve the system of equations:

x = 7 (equation 1) 9x - y = 11 (equation 2)

We can substitute the value of x from equation 1 into equation 2:

9(7) - y = 11

63 - y = 11

To solve for y, we can subtract 63 from both sides:

-y = 11 - 63

-y = -52

Multiplying both sides by -1, we get:

y = 52

So the solution to the system of equations is x = 7 and y = 52.