Sindhuja R. answered  04/11/20
Experienced Tutor specializing in Geometry
For such type of problems, check word by word.
Let the number be a
7 *a {The product of seven and a number }
7 *a = {equal to}
7 *a = 4 ( ) {four times}
7a = 4 (a-3) {the difference of the number and three}