Answer: The simplified form by combining like terms is given by

Step-by-step explanation:
Since we have given that

Now, we combine the like terms :
1) First we collect m terms :

2) Combine n terms and constant terms :

Hence, the simplified form by combining like terms is given by

Answer:
There is no placed underlined in the statement of the problem.
Step-by-step explanation:
But, the 7 is in the hundreds place,
the 0 is in the tens place, and
the 6 is in the ones place. :-))))
Is there more to problem or is this it?