Question
Tammy had thrice as many beads as erasers at first. She removed 7 beads and 3 erasers each time. In the end, there were 15 beads and 1 eraser left. How many beads and erasers did Tammy have at first?
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Tammy had thrice as many beads as erasers at first. She removed 7 beads and 3 erasers each time. In the end, there were 15 beads and 1 eraser left. How many beads and erasers did Tammy have at first?