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Solve for dd.\newlined + 7 < 9

Full solution

Q. Solve for dd.\newlined+7<9d + 7 < 9
  1. Subtract 77: Subtract 77 from both sides to isolate dd.\newlineCalculation: d + 7 < 9 \rightarrow d + 7 - 7 < 9 - 7 \rightarrow d < 2

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