Seudónimo Seudónimo
  • 13-05-2016
  • Mathematics
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Is 3x + 12 - 2x equivalent to x + 12? Use two properties of operations to justify your answer.

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apologiabiology
apologiabiology apologiabiology
  • 13-05-2016
3x+12-2x=x+12
3x-2x+12=x+12
1x+12=x+12
x+12=x+12

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