Answer:
The answer is -3m-4n+14
Explanation:
Simplify R-S+T
Step 1: Replace for R, S and T
Where R=11-2m, S=n+5, T=-m-3n+8
(11-2m)-(n+5)+(-m-3n+8)
Step 2: Open the brackets
11-2m-n-5-m-3n+8
Step 3: Collect the like terms
(-2m-m), (-n-3n), (11+8-5)
Solving for each group
(-3m), (-4n), (14)
Step 4: Add up all the terms
The answer is -3m-4n+14