Question 71192
Let x=smaller number
Then x+12=the larger number
2(x+12)=twice the larger number

Now we are told that:

x+2(x+12)=39  get rid of parens
x+2x+24=39  subtract 24 from both sides
x+2x+24-24=39-24 collect like terms
3x=15  divide both sides by 3
x=5 -------------------------------smaller number

x+12=5+12=17----------------------------larger number

CK

5+2(17)=39
5+34=39
39=39

5+12=17
17=17


Hope this helps-------ptaylor