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Solve using substitution.\newline10x+9y=1210x + 9y = 12\newlinex=−6x = -6\newline(_____, _____)

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Q. Solve using substitution.\newline10x+9y=1210x + 9y = 12\newlinex=−6x = -6\newline(_____, _____)
  1. Substitute x=−6x = -6: Step 11: Substitute x=−6x = -6 into the first equation.10(−6)+9y=1210(-6) + 9y = 12−60+9y=12-60 + 9y = 12
  2. Solve for y: Step 22: Solve for y.\newline9y=12+609y = 12 + 60\newline9y=729y = 72
  3. Divide to isolate y: Step 33: Divide both sides by 99 to isolate yy.\newliney=729y = \frac{72}{9}\newliney=8y = 8

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