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If 3 subtracted from twice a number is equal to 31 more than three times the number, what is the number?
 one year ago
 one year ago
If 3 subtracted from twice a number is equal to 31 more than three times the number, what is the number?
 one year ago
 one year ago

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mathstudent55Best ResponseYou've already chosen the best response.2
First, assign a variable to the unknown number: let number = x Now try to express in a mathematical way the information you are given about the number.: Since number = x twice the number = 2x 3 is subtracted from twice the number = 2x  3 three times the number = 3x 31 more than three times the number = 3x + 31 Since these two parts are equal, set them equal to each other: 2x  3 = 3x + 31 Solve for x.
 one year ago
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