Translate the statement into a mathematical equation. When 2 times a number is subtracted from 7 times the number, the result is 55.

Question

Translate the statement into a mathematical equation.

When 2 times a number is subtracted from 7 times the number, the result is 55.

 

Answer 1

Call the unknown number "X". Therefore, 2 times the number = 2X and 7 times the number = 7X. So, 2X subtracted from 7X equals 55 is written as:      7X-2X=55.