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A school is holding a carnival and hopes to raise $500. Child tickets cost $3, and adult tickets cost $5. If the school sells child tickets and adult tickets, then the equation expresses the fact that the school raised exactly $500 from ticket sales.
Solve the equation for .
Compare your answer:
Explain when it might be helpful to rewrite the equation this way.
Compare your answer: Your answer may vary, but here is a sample. Solving for helps us find out the number of child tickets to sell if we know the number of adults attending the carnival and we want to make exactly $500 from ticket sales.