I would say that they didnt because if you plug anythin in that equation it wont be a solution......i think thats what it meant
Answer:
linear pair
Step-by-step explanation:
the sum of linear pair angles is 180 degree.
so if we apply 16 in place of x in both equations and add them we get 180
Answer:
9
Step-by-step explanation:
is equal to
.
is equal to
.