Question

rachel read 3 more books than topher did over their summer vacation. if rachel read 7 books, how many books did topher read? choose 1 answer: a 4 b 7 c 3 d 10

Explanation:

Step1: Set up the equation

Let the number of books Topher read be $x$. We know Rachel read 3 more books than Topher and Rachel read 7 books. So the equation is $x + 3=7$.

Step2: Solve for $x$

Subtract 3 from both sides of the equation: $x=7 - 3$.
$x = 4$.

Answer:

A. 4