Question #ded82

1 Answer
Mar 18, 2017

The solution is the intersection point of the two lines (2, -3)

Explanation:

Multiply the second equation by -2 and add it to the first equation to eliminate the x-term:

  1. 2x - 3y = 13
  2. -2x -4y = 8
  3. Add equation 1 + equation 2: -7y = 21
  4. Divide by -7 to solve for y: y = 21/-7 = -3
  5. Substitute y into equation 1 and solve for x:
    2x -3(-3)=13
    2x +9 = 13
    2x = 4
    x = 2

The solution is the intersection point of the two lines (2, -3)