Posted by **Caroline** on Friday, April 15, 2011 at 2:24pm.

I set this problem up as 500-2X=3,400

Marys monthly salary is $500 less than twice her daughter's salary. Together they earn $3,400 each month. How much is the daughter's salary. ans-1,300

500-500-2x=3,400-500

2x=3,100

2x/2=3,100/2

what am I missing

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