Question

lesson 6 practice problems 1 from unit 6, lesson 2 a school ordered 3 large boxes of board markers. after giving 15 markers to each of 3 teachers, there were 90 markers left. the diagram represents the situation. how many markers were originally in each box? 90 diagram with three sections labeled x - 15 each

Explanation:

Step1: Set up equation from diagram

$3(x - 15) = 90$

Step2: Divide both sides by 3

$\frac{3(x - 15)}{3} = \frac{90}{3}$
$x - 15 = 30$

Step3: Solve for x

$x = 30 + 15$

Answer:

45