###Human: Wyatt has 10 blue envelopes. He has 4 fewer yellow envelopes than blue envelopes. How many envelopes does Wyatt have in all?, ### Assistant: Wyatt has 10 - 4 = 6 yellow envelopes.
The total number of envelopes he has is 10 blue + 6 yellow = 16 envelopes. 
 So the answer is :  16