Question

Write down an expression. Half a certain number is 3 more than the number

Answer 1

Answer:

Let the number be x

x/2 = x + 3

= x/2 - x = 3

= x - 2x / 2 = 3

= -x/ 2 = 3

= -x = 3*2

= -x = 6

= x = -6