The sum of three numbers is 59. The third number is 2 times the first. The second number is 9 less than the first. What are the numbers

Question

Looking for homework help 

Answer 1

Hi Elasia,

 

suppose 1st number = x

            2nd number is 9 less than the 1st = x-9

            3rd number is 2 times 1st = 2x

sum of 3 numbers = x+x-9+2x=59

                               4x-9 = 59

adding 9 on the both sides, 

                                4x= 68

               divide by 4 on both sides,

                                 x= 17

1st number = 17

2nd number= x-9 = 17-9= 8

3rd number = 2x= 2*17 =34

 

Check: 17+8+34=59