Answer:
7. 41 + 10e + 2f
8. 49 + 93r
Step-by-step explanation:
7. 41 + 9e - 4f + e + 6f
Combine like terms. You can combine 9e with e and -4f with 6f. 41 will be left alone.
41 + 10e + 2f
This is the furthest you can simplify the expression.
8. 54 + 91r - 5 + 2r
Combine 54 with -5 and 91r with 2r.
49 + 93r
Nothing further can be done with the expression.
