SOLUTION: Larry is 8 years older than his sister. In 3 years, he will be twice as old as she is now. How old are they now?

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Question 1076448: Larry is 8 years older than his sister. In 3 years, he will be twice as old as she is now. How old are they now?
Found 3 solutions by jorel1380, MathTherapy, josgarithmetic:
Answer by jorel1380(3719) About Me  (Show Source):
You can put this solution on YOUR website!
Let s be Larry's sister. Then Larry is s+8. So:
s+8+3=2(s+3)
s+11=2s+6
s=5
Larry's sister is 5; Larry is 13. ☺☺☺☺

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

Larry is 8 years older than his sister. In 3 years, he will be twice as old as she is now. How old are they now?
Correct answer:

Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
In 3 years, he will be twice as old as she is NOW.
L, Larry
x, sister

system%28L=x%2B8%2CL%2B3=2x%29

highlight_green%28L%2B3=2x%29
%28x%2B8%29%2B3=2x
x%2B8%2B3=2x
highlight%2811=x%29

L=x%2B8
L=11%2B8
highlight%28L=19%29