solve this world problem. Half of a number, plus a fifth of two less than the number, is 4 less than the number. What is the number

Answer: 16

Step-by-step explanation:

let x be the number

1/2x + 1/5 (x - 2) = x - 4

1/2x + 1/5x - 2/5 = x - 4 ... multiply by 10 to get rid of the fractions

5x + 2x - 4 = 10x - 40

7x - 4 = 10x - 40

-4 + 40 = 10x - 7x

36 = 3x

36/3 = x

12 = x <===