You haven't included enough information for the question, but assuming that a and b are the same then a is 4 and b is 4
Combine like terms
Add to both sides
Divide both sides
I only see three steps, man
9 x 8 = 72
155 - 72 = 83
83 divided by 6 =13.8
So he has to make at least 14 deliveries in order to reach his goal.
Step-by-step explanation:
150/1800
=12
he must work 12 hours to earn rs.1800
mark me as brainliest if this helps to u