Question 972315

Adding 1 to a certain number and taking one third of the result gives the same value as the original number. What is the number?
<pre>Let number be N
Then, {{{(1/3)(N + 1) = N}}}________{{{(N + 1)/3 = N}}}
3N = N + 1 ------ Cross-multiplying
3N - N = 1
2N = 1
N, or number = {{{highlight_green(1/2)}}}