Hi everyone. I'm a bit stuck on doing this Delta Epsilon prrof for the limit

lim x->1 =1

I have (I'll use brakets for absolute values)

( -1)<e and 0<(x-1)<d

so

(x-1)<

so d= ?????

ok then i'm stuck and don't know where from here...i'm not even sure if i have done that right

any help?