santa has lots of mixed up socks in his sack. if he has 6 green socks, 4 gold socks, 8 black socks and 2 red socks, what is the
minimum he needs to pull out to get a matching pair?
2 answers:
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Answer:
multiply all terms in the top equation by 2
multiply all terms in the second equation by -7. it would then add the two equations together to cancel out the variable x
You will then have two equations in terms of y
solve for y and either equation then substitute that value for y into the other equation then solve for x