Answer
[tex]\boxed {h= \frac{a-f}{c}} [/tex]
[tex] \boxed {a = ch+f} \rightarrow \boxed {a - f = ch}\rightarrow \boxed {\frac{a-f}{c} = h} \rightarrow \boxed {h= \frac{a-f}{c}} [/tex]
Detailed Explanation
In this problem, we are solving for h.
Let's start.
[tex] a = ch+f [/tex]
[tex] a - f = ch [/tex]
[tex] \frac{a-f}{c} = h [/tex]
Therefore, the answer would be [tex]\boxed {h= \frac{a-f}{c}} [/tex]
