22. Wes owns a shop where he sells souvenirs. He
of his order arrived. At that time he had 5 boxes left. Added to the new boxes, he had a total of 158 boxes
of the chocolates.
a. Solve the equation o
b + 5 = 158 to find the number of boxes b that were supposed to
be in the shipment. Explain how you solved the equation.
b. Check the solution to the equation from part a. Explain your method.