Answer:
24+12a+2b
Step-by-step explanation:
24 + 6a + b + 3a + b + 3a
6a + 3a + 3a = 12a
b + b = 2b
Bring the 24 down
24 + 12a + 2b
24 + 6a + b +3a + b + 3a
6a+3a+3a+b+b+24
12a+2b+24
2(6a+b+12)
