Question

the solution 1/X+1/y=4and 1/x-1/y=2​

Answer 1

Step-by-step explanation:

let 1/x=A , 1/y=B

A+B=4...... 1

A-B=2.......2

from1 and 2

A+B=4

A-B=2

+B,-B CANCELED

THEN

2A=6

A=6/2

A=3

FROM 1

A+B=4 (A=3)

3+B=4

B=4-3

B=1