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Type: Open-Ended
Category: Number Properties
Level: Grade 9
Standards: HSA-REI.A.1
Author: shawnah1978
Last Modified: 7 years ago

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Grade 9 Number Properties CCSS: HSA-REI.A.1

Explain why the equation x + 5 = 2 is still true if you subtract 5 from each side. Write the new equation and explain why the equation is still true.