Answer:
12 years old
Explanation:
6 years, Karen will be "x + 6" years old.
3 years ago, Karen's age was half of what she will be in 6 years.
x - 3 = (1/2)(x + 6)
we can multiply both sides by 2 to get rid of the fraction:
2(x - 3) = x + 6
Simplifying the equation:
2x - 6 = x + 6
Subtracting x from both sides:
x - 6 = 6
Adding 6 to both sides:
x = 12
Therefore, Karen is currently 12 years old.