Question

your brother buys a notebook for $7 and two pens. the total is $19.
if x represents the price of a pen, which equation represents this situation?

• 7 + 2x = 19
• 7 - 2x = 19
• 7 + 19 = 2x
• 2x + 19 = 7

Explanation:

Step1: Analyze the cost components

The notebook costs $7, and each pen costs $x, so two pens cost $2x.

Step2: Set up the total cost equation

The total cost is the sum of the notebook's cost and the two pens' cost, which equals $19. So the equation is $7 + 2x = 19$.

Answer:

$7 + 2x = 19$ (the first option, which is already selected with the blue dot)