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Grade 7 math · N.16 · Simplify expressions

Write an expression: less than a multiple of a number

Turn the words into symbols, in the form shown in the question.

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  1. Write an expression for "7 less than 6 times a number x". Write it as ax - b.

    Answer: 6x - 7

  2. Write an expression for "4 less than 9 times a number x". Write it as ax - b.

    Answer: 9x - 4

  3. Write an expression for "6 less than 7 times a number x". Write it as ax - b.

    Answer: 7x - 6

Tip: Turn the words into symbols, in the form shown in the question.

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