Can someone please show me how to solve this?

e^x - e^-x= 1

2

Also my professor told me to multiply each side by e^x.. can someone help? Thanks.

so I've tried it and solved it and got x=2.41 and x= -.41 (which when I plug it in, it doesn't equal 1).

e^X (e^x - e^-x) = 2e^x

which then results to (Let A = e^X)

A^2 - 2A -1 = 0.