Question

x+y=14
x=14-y
then, y=----------​

Answer 1

Answer:

y=14-x

y=14-(14-y)

y=14-14+y

y=0

Answer 2

hi mate

this your answer given below

y = 7

exp..

x+y=14.....1(

given

x=14-y......2)

so

simillarly

y=14-x.....3)

put 3) in 2)

14-x=14-y

x = y

hence

y = x

let , put x = y in equation 1)

y + y = 14

2y = 14

y = 14/2

y = 7

i hope it helpfull to you