Question

After getting 5 new rocks, George gave half of his rock collection to Susan. If George gave Susan 36 rocks, which equation could be used to determine how many rocks George started with?
                    

Answer 1

Answer:

C

Step-by-step explanation:

Answer 2

Let x be the number of rocks that George have at first.

First, George have x rocks. Then, he gets 5 new rocks. So, we have:
$x + 5$
Next, half of his rock collection is given to Susan.
$\frac{x + 5}{2}$

Susan got 36 rocks, so the equation is
$\frac{x + 5}{2} = 36$