Question

45-45=45 how i solve the question and use in any fundamental operation.

Answer 1

it's not possible it's incorrect
$45 - 45 = 45 \\ 0 = 45$
we can say it is FALSE STATEMENT

Answer 2

45-45=45,
9+8+7+6+5+4+3+2+1=45,
1+2+3+4+5+6+7+8+9=45,
Then, 987654321-123456789=864197532 = 8+6+4+1+9+7+5+3+2=45.