The point (5, -3) is a solution to which system? A. y = x - 8 2x + y = 7 B. y = x + 5 y = x - 3 C. y = x - 5 y = x + 3 D. y = x - 8 -2x + y = 7

1 answer

To determine which system of equations has (5, -3) as a solution, we need to substitute the point into each of the given equations and see if they hold true.

Option A:

  1. y=x8 3=58 3=3 (True)

  2. 2x+y=7 2(5)+(3)=7 103=7 7=7 (True)

Both equations in Option A are satisfied, so (5, -3) is a solution to this system.

Option B:

  1. y=x+5 3=5+5 3=10 (False)

This option does not hold.

Option C:

  1. y=x5 3=55 3=0 (False)

This option does not hold.

Option D:

  1. y=x8 3=58 3=3 (True)

  2. 2x+y=7 2(5)+(3)=7 103=7 13=7 (False)

This option does not hold.

Based on the checks, the only option in which (5, -3) is a solution is Option A:

  • y=x8 and 2x+y=7.

So, the correct answer is A.