SOLUTION: How many grams of 24k gold do I need to melt with 10 grams of 10k gold to make 14k gold?

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Question 727636:
How many grams of 24k gold do I need to melt with 10 grams of 10k gold to make 14k gold?
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
24x+10*10=14(10+x)
24x+100=140+14x
24x-14x=140-100
10x=40
x=40/10
x=4 grams of 24 caret gold is needed.
Proof:
24*4+10*10=14(10+4)
96+100=14*14
196=196