Question 1000010
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D=number of dimes in bank
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Two times the number of dimes in the bank=2D
Number of dimes in bank plus 30=D+30
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Two times the number of dimes=number of dimes + 30:
2D=D+30 . Subtract D from each side.
D=30
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ANSWER: There are 30 dimes in the bank.
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CHECK:
2D=D+30
2(30)=30+30
60=60