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zhenek [66]
2 years ago
10

1. At which ordered pair on a graph will the following system of a linear equations intersect?

Mathematics
1 answer:
Gekata [30.6K]2 years ago
6 0

Answer:

D. (-7, -9)

Step-by-step explanation:

<u>Equation 1</u> : -5x + 5y = -10

<u>Equation 2</u> : -3x + 2y = 3

<u>Multiply Equation 1 by 2 and Equation 2 by 5.</u>

  • -10x + 10y = -20 [Equation 3]
  • -15x + 10y = 15 [Equation 4]

<u>Subtract Equation 4 from Equation 3.</u>

  • -10x + 10y + 15x - 10y = -20 - 15
  • 5x = -35
  • x = -7

  • -3(-7) + 2y = 3
  • 2y = -18
  • y = -9

<u>Solution</u>

  • (-7, -9)
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