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Solve.\newline7x+8y=−157x + 8y = -15\newlinex=7x = 7\newline(_____, _____)

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Q. Solve.\newline7x+8y=−157x + 8y = -15\newlinex=7x = 7\newline(_____, _____)
  1. Substitute x=7x = 7: Substitute x=7x = 7 into the first equation 7x+8y=−157x + 8y = -15.\newlineCalculation: 7(7)+8y=−157(7) + 8y = -15\newline49+8y=−1549 + 8y = -15
  2. Isolate variable term: Isolate the variable term 8y8y.\newlineCalculation: 8y=−15−498y = -15 - 49\newline8y=−648y = -64
  3. Solve for y: Solve for y.\newlineCalculation: y=−648y = -\frac{64}{8}\newliney=−8y = -8
  4. Solution in ordered pair: We found:\newlinex=7x = 7\newliney=−8y = -8\newlineWhat is the solution in the form of an ordered pair?\newlineSubstitute x=7x = 7 and y=−8y = -8 in (x,y)(x,y).\newlineThe solution is (7,−8)(7, -8).

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