Question 1102428
<br>
The time difference between "5 years ago" and "in 8 years" is 13 years.<br>
If her age 5 years ago is half what it will be in 8 years, then her ages at those two times must be 13 and 26.<br>
So she was 13 5 years ago, which means she is now 18.<br>
Formally...<br>
Let x = her age now
Then x-5 = her age 5 years ago
and x+8 = her age in 8 years<br>
Then
{{{x-5 = (1/2)(x+8)}}}
{{{2x-10 = x+8}}}
{{{x = 18}}}