What is the value of z of the following expression (x/y + zx -zy= 100) =, if x= 100, y= 10?

Substituting the given values for x and y, we get:

(x/y + zx -zy = 100)

(100/10 + 100z - 10z = 100)

(10 + 90z = 100)

Solving for z, we can first subtract 10 from both sides:

(90z = 90)

Then divide both sides by 90:

(z = 1)

Therefore, the value of z in the given expression is 1.