Question

find the solution for a pair of linear equation x+y=14 and x_y=4​

Answer 1

Answer:

x=9 y=5

Step-by-step explanation:

x+y=14 (eq 1)

x-y=4   (eq 2)

eq 1+eq 2

x+y+x-y=14+4

2x=18

x=18/2     x=9

x=9 in equation 2

9-y=4

-y=4-9

-y=-5

y=5     x=9

Answer 2

Answer:

x+y=14

x-y=4

then when we add these two equations

then+y and-y get be cancelled

and x+x = 2x

and 14+4=18

then 2x = 18

then x=18/2=9

and we substitute the x value in x+y = 14

then 9+y= 14

y=14-9=5

therfore x= 9and y= 5