What is the missing x-value if (x, 1) is a solution of 2x-y=5?

Equation of 2x-y = 5 where we know the y value from (x, 1)

We substitute the y value in the equation to get the x value easily

2x-1 = 5

2x = 5 + 1

2x = 6

x = 3 (divide both side by 2)

Answer x = 3 when y = 1