SOLUTION: Please solve: I mainly just need the algebraic equation for the problem. Jennifer is 9 years older than Kristina. Five years ago, Jennifer was twice as old as Kristina. How old a

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Question 996286: Please solve: I mainly just need the algebraic equation for the problem.
Jennifer is 9 years older than Kristina. Five years ago, Jennifer was twice as old as Kristina. How old are they now?
Found 2 solutions by ankor@dixie-net.com, ikleyn:
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Jennifer is 9 years older than Kristina.
j = k + 9
Five years ago, Jennifer was twice as old as Kristina.
j - 5 = 2(k - 5)
How old are they now?

Answer by ikleyn(52775) About Me  (Show Source):
You can put this solution on YOUR website!
.
Jennifer is 9 years older than Kristina. Five years ago, Jennifer was twice as old as Kristina. How old are they now?
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Let J = Jennifer's current age;
K = Kristina's current age.

Then

J = K + 9,
J - 5 = 2*(K-5).     <<<--- 5 years ago.

As you said,  this is all you want.

Good luck!