Question

1. suzy read 15 pages of her book before lunch. she read x more pages after school. enter an equation that represents the total number of pages, y, suzy read in her book.

Explanation:

Step1: Define total pages

Total pages = pre-lunch pages + after-school pages

Step2: Substitute given values

Let $y$ = total pages, 15 = pre-lunch pages, $x$ = after-school pages.
$y = 15 + x$

Answer:

$y = x + 15$