Question

The sum of three numbers is 28. The second number is three times the first and the third is 7 less than the second. What are the numbers

Answer 1

First term: 5
Second: 15
Last : 8

Answer 2

Equation:

x+3x+3x-7=28

Solving:

3x+3x+x=7x

7x-7=28

7x=28+7

7x=35

x=5

Plug 5 into the equations and you’ll get:

First term = 5

Second term = 15

Third term = 8