Seudónimo Seudónimo
  • 12-12-2019
  • Mathematics
contestada

Solve the system of equations using substitution. Write the solution as an ordered pair.

y = x + 6
y = –2x – 3

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sqdancefan
sqdancefan sqdancefan
  • 12-12-2019

Answer:

  (-3, 3)

Step-by-step explanation:

Substitute for y:

  x+6 = -2x -3

  3x = -9 . . . . . . . add 2x -6 to both sides

  x = -3 . . . . . . . . divide by 3

  y = (-3) +6 = 3 . . substitute for x in the first equation

The solution is ...

  (x, y) = (-3, 3)

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