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The expression "Twice a number decreased by 5" can be represented as 2x - 5, where x is the unknown number. This expression first multiplies the number by 2 and then subtracts 5 from the result. For example, if the number is 10, the expression would be 2(10) - 5 = 20 - 5 = 15. The value of the expression depends on the specific number being used.

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ProfBot

7mo ago

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