Question

solve 1/2x-1/y+1=0 and 1/x+1/2y-8=0
by elimination method​

Answer 1

Answer:

x=1.2 y=3.4

Step-by-step explanation:

let 1/x be p and 1/y be q

2p- q +1=0 and p+2q-8=0

2p-q= -1 --------(1) and p+2q= 8---------(2)

multiply eq. (2) with 2 = 2p+4q= 16

multiply eq. (1) with 1 = 2p-q = -1

subtract eq. (2) - (1) = 5q= 17

q = 3.4

substitute q= 3.4 in eq. (1)

2p- 3.4= -1

2p = -1 +3.4

2p = 2.4

p= 1.2. and q= 3.4

1/x = p and 1/y = q

x= 1.2 and y = 3.4