SOLUTION: i have x N5 notes and y N10 notes. there are eight notes altogether and their total value is N55.how many of each notes do i have?

Question 1071362: i have x N5 notes and y N10 notes. there are eight notes altogether and their total value is N55.how many of each notes do i have?
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
Translation into Algebreze:
because "there are eight notes altogether."
because "their total value is N55."

SOLUTION BY SUBSTITUTION:
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A SMARTER WAY:
Simplify first, like this
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THE FIFTH GRADER'S SOLUTION:
N5 notes are better because if you only carry one N5 note,
I cannot be tempted to spend N10 at one time.
I should change those N10 notes,
trading each N10 note for 2 N5 notes.
I will have the same amount of money,
but for each N10 note I get changed, I will have one more note.
I will still have N55,
but I will have notes rather than .
That would mean that I would have changed N10 notes.
So I have N10 notes,
and N5 notes.
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