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OpenStudy (anonymous):
There are 30 students who are participating in a musical. Some additional students over the break signed up to participate in the musical. A week before the opening show, 12 students decided to quit the musical. There are now 51 students participating. How many students signed up to participate in the musical during the break?
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OpenStudy (anonymous):
30 + x - 12 = 51 , solve for x !
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