Question 1010768
So far:
V=84 ft^3
w=<s>l-1</s>
h=w-4
<s>l=w+1</s>
---



{{{system(w=L-1,h=w-4,V=84)}}}


{{{highlight_green(w*L*h=84)}}}
You want substitutions in order to put this equation in one variable.