Question

W=p(u-z) solve for z

Answer 1

Answer:  $z = \frac{pu-W}{p}$

We can write this as z = (pu-W)/p

This is the single fraction with pu-W up top and p in the denominator.

Other answers are possible.

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Work Shown:

$W=p(u-z)\\\\W=pu-pz\\\\W+pz=pu\\\\pz=pu-W\\\\z=\frac{pu-W}{p}$

An alternative method could have these steps instead

$W=p(u-z)\\\\u-z = \frac{W}{p}\\\\-z = \frac{W}{p}-u\\\\z = -\frac{W}{p}+u\\\\z = -\frac{W}{p}+\frac{pu}{p}\\\\z = \frac{-W+pu}{p}\\\\z = \frac{pu-W}{p}$