Question

what comes if we subtract y from y?​

Answer 1

y-y=0 i think so 0 will come

Answer 2

y-y = 0.

explanation : for any variable y, we can have any value. Suppose y=7.

now value of y - y is 7-7 because we assumed y=7.

7 - 7 =0.

hence proved.

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