z = 9x - y

solve for x

To solve for x, we need to isolate it on one side of the equation.

Starting with the given equation:

z = 9x - y

Rearranging the terms:

9x = z + y

Finally, dividing both sides of the equation by 9:

x = (z + y) / 9

Therefore, x = (z + y) / 9.