What are the steps, in order, needed to solve 3x + 4 = 13?
a. divide by 3, and then subtract 4.
b. multiply by 3, and then add 4.
c. subtract 4, and then divide by 3.
d. add 4, and then multiply by 3.

C. Subtract 4, and then divide by 3.

Step-by-step explanation:

Given equation,

3x + 4 = 13

Since, the steps of solving this equation are as follows,

Step 1 : Subtract 4 on both sides,

3x + 4 - 4 = 13 - 4

3x = 9

Step 2 : Divide both sides by 3,

x = 3

Hence, Option 'C' is correct.

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

ans789

step-by-step explanation: