Question

A backpacker started his day at an elevation of x feet above sea level. After a day of hiking, the backpacker was at sea level.Which equation models this situation?

Answer 1

We are still using the inverse here. To get back down to sea level would equal 0. so..

X + (-x) =0

Answer 2

We are still using the inverse here. To get back down to sea level would equal 0. so..

X + (-x) =0