Question 105768
One number is 12 more than another. The sum of the smaller number and twice the larger number is 39. Find the larger number.
5
7
17
34


Let x: smaller number
    x+12: larger number


Equation: x + 2(x+12) = 39
          x + 2x + 24 = 39
          3x + 24 = 39
          3x = 39 - 24
          3x = 15
          3x/3 = 15/3
          x = 5


Larger number: x + 12
               5 + 12
               17


By the way, this is jermz69.