Question

A washer and a dryer cost $819 combined. The washer costs $69 more than the dryer. What is the cost of the dryer?

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Answer 1

the dryer costs $450

Explanation:

w + d = 831

w = d-69 (they told us we will have to take $69 from the cost of the dryer to determine the cost of the washer)

(d-69) + d = 831

Let's combine like terms

2d - 69 = 831

add 69 to both sides to solve for d

2d = 900

divide both sides by 2 to solve for d

d = 450; the dryer costs $450