Variables in Real-World Equations

Variables in Real-World Equations

7th Grade · Math · 70 min· Ccss.math.content.7.ee.b.4

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Learning Objective

I can Solve word problems leading to equations of the form px + q = r and p(x + q) = r, where p, q, and r are specific rational numbers. Solve equations of these forms fluently.

  • 1

    Marcia makes $27 on every computer she sells, and her monthly expenses are $10,000.

  • 2

    To calculate Marcia's profit, we can use the equation: Profit = 27x - 10,000, where x is the number of computers sold.

  • 3

    To make a profit, Marcia needs to sell at least 371 computers in a month.