Hey, Im not quite too sure about this problem what the value of ^(-1) is. I would believe  just because of addition and multiplication tables. But how do you determine what operation to use for the inverse? Thats where I get lost.
"Find all values of [x] in the set Z_m, 0<=x<m, that satisfy the equation."
^(-1) -  = [x] in the set Z_10
x=1..? Help appreciated!