Question

Translate the following phrase to an expression: the difference between twenty and twice a number. Evaluate the expression for n = 3.

Answer 1

14

Explanation:

Rewritten as an expression it would be 20 - n^2, and with the variable substituted and multiplied, it will become 20 - 6.

20 - 6 = 14

Answer 2

22-2n or 22-2(3)

Explanation: