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Posted by on Wednesday, January 22, 2014 at 7:12pm.

Write an equation that uses 18 - ? and 10 + 2. Explain how to decide which numbers would make it true.

  • math - , Wednesday, January 22, 2014 at 7:19pm

    18 - x = 10 + 2

    18 - 12 = x

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