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Solve the system of equations:

Y = 1/3x - 1
X = -3y + 5

A) x = 9, y = 2
B) x = 6, y = 3
C) x = 7, y = 3
D) x = 5, y = 2

User Crferreira
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1 Answer

2 votes

Final answer:

The system of equations was solved using substitution. However, the calculated solution (x = 4, y = 1/3) does not match any of the provided answer choices, suggesting there may be a typo in the original problem or in the solution process.

Step-by-step explanation:

To solve the system of equations y = 1/3x - 1 and x = -3y + 5, we can use substitution or elimination. In this case, substitution may be simpler.

Starting with the second equation, x = -3y + 5, we can substitute the expression for y from the first equation into this equation.

Therefore, substituting y from y = 1/3x - 1 into x = -3y + 5, we get:

  • x = -3(1/3x - 1) + 5
  • x = -x + 3 + 5
  • 2x = 8
  • x = 4

Now we substitute x back into the first equation to find y:

  • y = 1/3(4) - 1
  • y = 4/3 - 1
  • y = 4/3 - 3/3
  • y = 1/3

However, it seems there might have been a mistake, as none of the provided answer choices match this result. Please double-check the equations provided and the solution again, as typos in the original problem can lead to an incorrect solution.

User Psychotechnopath
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7.6k points