Megan pays $16 for a shirt that costs $22 before sales. What is the amount of the discount?
Define a variable ** Let x be the amount of the discount.
Write an equation ** We have, 22 - x = $16
How do we change the writing of the equation? ** We change the writing of the equation:
Write an equation ** 22 - x + x = 16 + x
Simplify ** So, 22 = 16 + x
How do we remove 16 from both sides? ** We then Remove 16 from both sides:
Simplify ** 22 - 16 = 16 + x - 16
Simplify ** So, 22 - 16 = x
How much is the discount? ** So, the amount of the discount is x = $<<6=6>>6.
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