Consider the equation 3p - 7 + p = 13. what is the resulting equation after the first step in the solution?
p - 7 = 13 – 3p
2p - 7 = 13
3p - 7 = 13 - p
4p - 7 = 13

Option D

Consider the equation 3p - 7 + p = 13. The resulting equation after the first step in the solution is 4p - 7 = 13

Solution:

Given that we have to consider the equation is 3p – 7 + p = 13

And we have to find the correct option from the given set of options which shows up the first step in solving the given equation .

Now, in the process of solving an equation the first step will always be combining the like terms.

So, in our equation too, combine the like terms.

Then, 3p – 7 + p = 13 ⇒ 4p – 7 = 13.

Option 4 shows the above step.

Hence, the correct option is option D

Explained below.

Step-by-step explanation:

A) We are not given a population percentage of people who wear dark or light clothes. For example, the number of people wearing dark cloths were maybe 700 and only 100 were killed.

So using the percentage of those killed to draw a conclusion is not a true representation of the reality. Thus, it is not justified to conclude that it is safer to wear light-colored clothing at night.

B) The additional information needed will be the population percentage of all pedestrians both those killed and those not killed who wore light-colored and dark colored clothing at night.