Separate the number 53 into three parts so that the second number is 3 less than the first number and the third number is twice the first number. Give the value of the second number.

First number = x

second number = x-3

third number = 2x

x + x-3 + 2x = 53

4x - 3 = 53

4x - 3+3 = 53+3

4x = 56

4x/4 = 56/4

x = 14

first number = 14

second number = 14-3

second number = 11

third number = 2x

third number = 2 (14)

third number = 28

14 + 11 + 28 = 53

53=53