SOLUTION: James and kelvin have 2100 pic cards altogether . James has 300 more cards than kelvin.how many cards does kelvin have?

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Question 917011: James and kelvin have 2100 pic cards altogether . James has 300 more cards than kelvin.how many cards does kelvin have?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
x the number Kelvin has
James + Kelvin
(x+300) + x = 2100
2x = 1800
x = 900, x the number Kelvin has
....
And...checking (James has 1200)900%2B300
sum = 2100