Thursday

August 21, 2014

August 21, 2014

Posted by **Annia** on Wednesday, December 9, 2009 at 4:44pm.

- Math -
**PsyDAG**, Thursday, December 10, 2009 at 11:05amLet x = Jack's age

Let y = Jen's age

From the information above:

2y = x - 2

x + 3y = 66

Get x on one side for the first equation.

x = 2y + 2

Substitute 2y + 2 for x in the second equation and solve for y. Put that value in the first equation to solve for x. Check by inserting both values into the second equation.

I hope this helps.

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