Solving 3x - 2y = -5 and x + 2y = 9 simultaneously using elimination method
3x - 2y = - 5 ----------- (i)
x + 2y = 9 ----------- (ii)
4x = 4
x = 1
put x = 1 into eqn ---(ii)
x + 2y = 9 becomes 1 + 2y = 9
2y = 9 - 1 = 8
y = 82\;\frac{8}{2}28 = 4
x = 1 and y = 4
Therefore, x−yx+y\;\frac{x - y}{x + y}x+yx−y = 1−41+4\;\frac{1 - 4}{1 + 4}1+41−4 = −35\;\frac{-3}{5}5−3
