320 - 293 + 10 x 60 - 2193
1) multiply 10 x 60 = 600
2) subtract 320 - 293 = 27
3) now add 27 + 600 = 627
4) subtract 627 - 2193 = some negative number
someone is negative years old because they clearly do not know math .. and thus .. an unnecessary attempt to be cute or funny ends up demonstrating an absence of mathematical prowess.
my guess is you are a high schooler. pay more attention in algebra class.