Copy of Variable expressions with addition and subtraction

Author:Kyle Lantz, Duane Habecker

Move the red dot on the left number line. Observe how the blue dot moves on the right number line. What algebraic expression describes the relationship between the two dots?

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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
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