Kylie has only quarters and nickels in a jar the total value in the jar is $2 if there are a total of 20 coins how many of each
1 answer:
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Rearranging the first equation gives:
Substituting this into the other equation gives:
If x=-1:
So x=-1, y=-5
Substituting this into the other equation gives:
If x=-1:
So x=-1, y=-5