Write and solve a word problem that can be modeled by addition of two negative numbers integers

A word problem that can be modeled by addition of two negative numbers integers is given as followed.

Evans and Irvin are standing at the same spot. Evans took 7 steps backwards and another 7 steps backward, what is the current position of Evans relative to where Irvin is standing?

To solve the above, we note that Evans took 7 steps backwards and another 7 steps backward, thus his current position relative to Irvin is given by (-7) + (-7) = - 7 - 7 = - 14.

Therefore, Evans is 14 steps backwards relative to where Irvin is standing.