Question

82°
x = 88
x = 90
x = 82
x = 98

Explanation:

Step1: Recall angle - sum property of a straight - line

The sum of angles on a straight - line is 180°.

Step2: Set up an equation

We know that 82°+x° = 180°.

Step3: Solve for x

x = 180 - 82.
x = 98.

Answer:

x = 98