Question

The cost of your new book bag is $11.50 more than the cost C of your old book bag. You pay $47 for your new book bag. Write and solve an equation to find the cost of your old book bag. Include units in your answer.

Answer 1

OB(old book bag)=35.50

Explanation:

NB(new book bag)=11.50+OB

NB=47

____________________

47=11.50+OB

-11.50 -11.50

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35.50=OB