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Solve using elimination.\newline−10x−9y=−19-10x - 9y = -19\newline7x+9y=−117x + 9y = -11\newline(_____, _____)

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Q. Solve using elimination.\newline−10x−9y=−19-10x - 9y = -19\newline7x+9y=−117x + 9y = -11\newline(_____, _____)
  1. Identify Total Tape Amount: Identify the total amount of tape needed and the amount per roll.\newlineTotal tape needed = 8,000 cm8,000\,\text{cm}, Tape per roll = 2,000 cm2,000\,\text{cm}.\newlineWe need to divide the total tape needed by the tape per roll to find the number of rolls.\newlineCalculation: 8,000÷2,000=48,000 \div 2,000 = 4.
  2. Calculate Number of Rolls: Confirm the calculation.\newlineRecheck: 8,0008,000 divided by 2,0002,000 still equals 44.\newlineThis confirms the number of rolls needed is 44.

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