Answer:
C
Explanation:
x +
y = 5 ( multiply through by 4 to clear the fraction )
4x + 3y = 20 → (1)
x -
y = 0 ( multiply through by 2 to clear the fraction )
2x - y = 0 → (2)
multiplying (2) by 3 and adding to (1) will eliminate y
6x - 3y = 0 → (3)
add (1) and (3) term by term to eliminate y
(4x + 6x) + (3y - 3y) = 20 + 0
10x + 0 = 20
10x = 20 ( divide both sides by 10 )
x = 2