Question

Twice the difference of a number and 9 is 3

Answer 1

• The number is 10.5

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Let the number be n.

Twice the difference of a number and 9 is 3, set up an equation:

• 2(n - 9) = 3
• 2n - 18 = 3
• 2n = 21
• n = 10.5

Hence the number is 10.5.