Amy has 30 less than three times then umber of books that Jane has. If B is equal to the number of books that Jane has, which of the following expressions show the total number of books that Amy and Jane have together?
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Answer:
4b+30
Step-by-step explanation:
Let books Amy has be a ans books Jane has be b.
a-30=3b...eq1
Total books = a+b
a-30+b=3b+b (adding b both sides)
a+b= 4b+30
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