Find a number such that if you add 8 and divide the result by 4 you will get the same answer as if you subtracted 3 from the original number and divided by 2

14

Step-by-step explanation:

First condition

Let the number be x

      Cross multiply

2(x + 8) = 4*(x - 3)                             Remove the brackets

2x + 16 = 4x - 12                               Add 12 to both sides

2x + 16 + 12 = 4x - 12 + 12                Simplify

2x + 28 = 4x                                     Subtract 2x from both sides

2x - 2x + 28 = 4x - 2x                      Simplify

28 = 2x                                             Divide both sides by 2

28/2 = 2x/2                

x = 14

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads