Children's Health & Safety Association
Issue 43: July 2018
September 19, 2014 -- In Middle School, students are presented with equations containing more than one variable. For example, x + y = 5 is a rule that shows how the two variables x and y are related to each other (in mathematics we call equations with two variables relations). How many solutions for x and y make the equation x + y = 5 true?
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