Let x = amount of appliances Jack sold
Let y = amount of appliances Dion sold.
We need to construct a system of equations to solve this problem
33 = x + y
y = 2x - 3.
Let's solve this system of equations by substitution.
33 = x + (2x - 3). Combine like terms.
33 = 3x - 3. Add 3 to both sides.
36 = 3x. Divide both sides by 3
12 = x. Plug this value into one of our original equations.
33 = 12 + y. Subtract 12 from both sides
y = 21
Jack sold 12 appliances and Dion sold 21 appliances.
