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a student writes the difference between 15 and the product of 5 and y to describe the expression 5y - 15.explain the error
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a student writes the difference between 15 and the product of 5 and y to describe the expression 5y - 15.explain the error

User Jlliagre
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What the student says implies the algebraic expression of 15-5y, which is backwards.
When you say the difference between blank and blank, it is assumed that you subtract the second number from the first number.
User Hslugs
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