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Solve using substitution.\newline−10x+10y=−20-10x + 10y = -20\newlinex=4x = 4\newline(_____, _____)

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Q. Solve using substitution.\newline−10x+10y=−20-10x + 10y = -20\newlinex=4x = 4\newline(_____, _____)
  1. Substitute x=4x = 4: Substitute x=4x = 4 into the equation –10x+10y=–20–10x + 10y = –20.\newlineCalculation: –10(4)+10y=–20–10(4) + 10y = –20, which simplifies to –40+10y=–20–40 + 10y = –20.
  2. Solve for y: Solve for y in the equation −40+10y=−20-40 + 10y = -20.\newlineCalculation: Add 4040 to both sides to get 10y=2010y = 20.
  3. Divide to find yy: Divide both sides by 1010 to find the value of yy.\newlineCalculation: y=2010y = \frac{20}{10}, which simplifies to y=2y = 2.
  4. Write solution as coordinate point: We found that x=4x = 4 and y=2y = 2. Write the solution as a coordinate point.\newlineThe coordinate point is (4,2)(4, 2).

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