6th grade - Expressions and Variables Quiz

Use a variable to represent the unknown number in the following problem: "A number increased by 7 equals 15. What is the number?"

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Write a simple expression for: "The sum of 8 and 5, multiplied by 2."

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Interpret the expression: "Subtract 3 from the product of 7 and 2."

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Write a simple expression for: "The difference between 10 and 3, divided by 2."