Question 943166
<pre>
You can do it with or without algebra.  Here are both ways.

Without algebra:

Next year he'll be twice as old as he was 8 years ago, which means he'll
be 16 next year, so he's 15 this year.


With algebra:

B+1 = 2(B-7)

Solve that and get B=15.

Edwin</pre>