Tara bought 30 books at a yard sale. She now has 220 books. Which equation can be solved to find b, the number of books Tara had before the yard sale?
can anyone help me please and thank you have a good day! :D
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Answer:
220-30=190= When tara had 30 books and she now has 220 books, she gained 190 books, because 190+30=220. So b=190.
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