Solve for $m$.
\[
20+m=n
\]
\[
m=
\]
Final Answer: \(\boxed{n - 20}\)
Step 1 :The question is asking to solve for $m$ in the equation $20+m=n$.
Step 2 :To find the value of $m$, we need to isolate $m$ on one side of the equation.
Step 3 :We can do this by subtracting $20$ from both sides of the equation.
Step 4 :The solution to the equation is $m = n - 20$.
Step 5 :Final Answer: \(\boxed{n - 20}\)