answer:
speed= 72 km - per • hour
Answer:
Speed of car = 72 km per hour
7
Step-by-step explanation:
The following equation can be derived from the question
Let x = unknown number
5 + 2x = 3x - 2
collect like terms
5 + 2 = 3x - 2x
x = 7
Answer: 28x+15
