Fill in the Blank

A logistics manager is balancing a daily shipping manifest. The manifest notes that the sum of three times the number of priority packages (nn) and seven standard packages is twenty-five packages in total. To find the number of priority packages, the manager sets up the equation 3n+7=25{}3n + 7 = 25. According to the standard algebraic problem-solving strategy, the first step to isolate the variable term is to subtract ____ from both sides of the equation.

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Updated 2026-05-25

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