Question

2x - y - 4 = 0
3x + y - 9 = 0

Answer 1

Explanation:

add up both equations

2x -y + 3x + y -13 = 0 (y will eliminate -y)

5x -13 = 0

5x = 13

x = 13/5 now use this value to find y

2 × 13/5 -y - 4 = 0

26/5 - y -4 = 0

26/5 - 4 = y

6/5 = y