Question

if 2y5 is divisible by 11. what is the value of y?​

Answer 1

⫸Answer

(2+5) - y = 0

7 - y = 0

- y = 0 - 7

-y = -7

y = 7

( ☛if the difference between the sum of odd and even places is divisible by 11 or 0, then the whole number is divisible by 11. )