Answer:
101
Explanation:
Angles 1 and 2 are alternate interior angles which mean they are equal. Set them equal to each other and solve for x
8x + 7 = 9x -2 Subtract 8x from both sides
7 = x -2 Add 2 to both sides
9 = x
Plug this back into either equation to find the angle measurement
8(9) + 7
72 + 7
79
Angles 2 and 3 are supplemental. They add to 180
180 - 79 = 101