Question

If x + 9y is divisible by 5, where x and y are integers, then what is the remainder when 8x + 7y is

divided by 5?​

Answer 1

Answer:

the ans is 0

Step-by-step explanation:

y should always be a mulitiple of 5, so let us us assume that y belongs to 5 or 10.

if y is 5 then x can be 10 or 5. the same goes with y is 10.

so, 8x plus 7y belongs to a number which is divisble by 5.

so the remainder is zero.