Please help asap will give brainliest to first correct answer

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem

The table shows the age and finish time of ten runners in a half marathon. identify the outlier in this data set. drag into the table the ordered pair of the outlier and a reason why that point is an outlier.

X+y=-4 x-y=2 use elimination with adding and subtraction