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Solve.\newline−9x−10y=−9-9x - 10y = -9\newline8x+10y=188x + 10y = 18\newline(_____, _____)

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Q. Solve.\newline−9x−10y=−9-9x - 10y = -9\newline8x+10y=188x + 10y = 18\newline(_____, _____)
  1. Eliminate y: Add the two equations to eliminate y.\newline(−9x−10y)+(8x+10y)=−9+18(-9x - 10y) + (8x + 10y) = -9 + 18\newline−9x+8x=9-9x + 8x = 9\newline−x=9-x = 9
  2. Solve for x: Solve for x. x=−9x = -9
  3. Substitute xx and find yy: Substitute x=−9x = -9 into the second equation to find yy.
    8(−9)+10y=188(-9) + 10y = 18
    −72+10y=18-72 + 10y = 18
    10y=9010y = 90
  4. Solve for y: Solve for y. y=9y = 9

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