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y+x=18 5y-2x=78

Game

a win is awarded 5 points, a loss is deducted 2 points. James had 78 points. they played 18 games in total. how many games did james win?

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Are you sure that these numbers are right?  The answer includes fractions, and I don't know how you win part of a game and lose part of the same game.

Maybe 1 point for a loss? Otherwise, it does not work

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1 Answer

Hey Alexander!

If James won all 18 games, he'd have 90 points.

If James went 17-1, he'd have 85 - 2, or 83 points.

At 16-2, James would lose 7 more points down to 76.

With 78 points, James sure had a good record!