Patrick B. answered 05/26/19
Math and computer tutor/teacher
He baked x souffles.
He bought 4x eggs.
He used 3x eggs.
4x-3x = x = 18 eggs are left over .
He made 18 souffles.
He used 18 *3 = 54 eggs to make them.
He bought. 4*18 = 54 + 18 = 72 eggs.