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Solve using substitution.\newline−7x+5y=−13-7x + 5y = -13\newlinex=−1x = -1\newline(_____, _____)

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Q. Solve using substitution.\newline−7x+5y=−13-7x + 5y = -13\newlinex=−1x = -1\newline(_____, _____)
  1. Substitute x=−1x = -1: Substitute x=−1x = -1 into the first equation –7x+5y=–13–7x + 5y = –13 and then simplify.\newlineCalculation: –7(−1)+5y=–13–7(-1) + 5y = –13 which simplifies to 7+5y=–137 + 5y = –13.
  2. Solve for y: Solve for y in the equation 7+5y=−137 + 5y = -13. Calculation: 5y=−13−75y = -13 - 7 which simplifies to 5y=−205y = -20.
  3. Divide by 55: Divide both sides of the equation 5y=−205y = -20 by 55 to find the value of yy.\newlineCalculation: y=−20/5y = -20 / 5 which simplifies to y=−4y = -4.
  4. Write coordinate point: We have found that x=−1x = -1 and y=−4y = -4. Write the solution as a coordinate point.\newlineThe coordinate point is (−1,−4)(-1, -4).

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