Question

If the mean of 6,7,x,8y.14 is 9 then
a) x+y-21
b) x+y=19
c) x-y=19
d) x-y-21​

Answer 1

Answer:

x + 8y = 18

x = 18 - 8y

18 - 8y by x = 0

Answer 2

Answer:

you answer is x+y = 19

option c is right

hope you get your answer...

follow me...

mark as brainliest.