Question

Which equation matches the sentence? Column A Column B

1. Seven more than 2 times a number is 23.
2. The difference of 2 times a number and 7 is 23.
3. The sum of 7 times a number and 2 is 23.
4. Seven less than 2 times a number is 23.
a. 7n 2 = 23
b. 2n – 7 = 23
c. 2n 7 = 23

Answer 1

I will put an equation to the corresponding number.

1) Seven more than 2 times a number is 23 => 2n + 7 = 23
2) The difference of 2 times a number and 7 is 23 => 2n - 7 = 23
3) The sum of 7 times a number and 2 is 23 => 7n + 2 = 23
4) Seven less than 2 times a number is 23 => 2n - 7 = 23

Based on the choices. The equation that matches sentences 2 & 4 is letter b. 2n - 7 = 23

Though both sentences are structured differently and used different terms, they both refer to subtraction of 7 from the product of 2 and n to get the difference of 23.