Writing expressions from words

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Learn it A variable (like x) stands for an unknown number. Turn words into symbols: "more than" → +, "less than" → − (order flips!), "product" → ×, "quotient" → ÷, "twice" → 2 ×.

Example: Write "5 less than three times a number".

Three times a number: $3x$.
5 less than that: subtract 5 from it.
$3x - 5$ (not $5 - 3x$).

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