Question

In the equation 3x - 5 = 22,

where "x is the cost of a sandwich"

Diana said that "the sandwich cost $9."

Victor's answer is $5.

Who is right? Support your claim with math evidence or reasoning.

Answer 1

Diana said that "the sandwich cost $9

Explanation:

3x - 5 = 22

3x = 22 + 5

3x = 27

x = 27 / 3

x = 9