Carly and Rob combined their DVD collections. Now they have 42 DVDs in all. Carly had 4 more DVDs than Rob. How many DVDs did Carly have?

C + C - 4 = 42

2C = 42 + 4

2C = 46

C = 46/2

C = ?

The answer is 19. I know, this math is crazy!!!!

Memekksjsmjs

To solve this problem, let's break it down step by step.

Let's assume the number of DVDs Rob had is "x."

According to the problem, Carly had 4 more DVDs than Rob. So, Carly's collection can be represented as "x + 4".

The total number of DVDs they have when combined is given as 42. So we can set up the equation: x + (x + 4) = 42.

Simplifying the equation, we combine like terms: 2x + 4 = 42.

Next, we isolate the variable by subtracting 4 from both sides: 2x = 38.

To solve for x, we divide both sides by 2: x = 38/2 = 19.

So, Rob had 19 DVDs.

Now, to find out how many DVDs Carly had, we substitute the value of x back into the equation: Carly's DVDs = x + 4 = 19 + 4 = 23.

Therefore, Carly had 23 DVDs.