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Collecting like terms

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Concept 1 of 3 · no score 🙂

Same letter, or no deal

You can total the reds, and total the bluesxxx=3xyy=2y3x + 2ydifferent letters → different bricks → cannot be combined
3 apples + 2 oranges is not 5 of anything.
  1. 1A red brick is x long, a blue one is y long.