z=7x-y
solve for x
To solve for x in the equation z = 7x - y, we need to rearrange the equation to isolate x.
First, add y to both sides of the equation:
z + y = 7x
Next, divide both sides of the equation by 7 to solve for x:
x = (z + y) / 7
Therefore, x = (z + y) / 7.