Answer:
y = C/h - 4
Explanation:
C = (4+y)h
Divide both sides by h.
C/h = 4 + y
Next, subtract 4 from both sides.
C/h - 4 = y
y = C/h - 4
Make sure it looks like a fraction in front and then minus 4. (It shouldNOT look like the minus 4 is on the bottom of the fraction with the h.)