For what value of x is line a parallel to line b?Enter your answer in the box.x =
Accepted Solution
A:
It will be parallel only if angle (2x + 20) equal to 80, or (2x + 20) + 100 equal to 180. Let's use the first example: 1) 2x + 20 = 80 Subtract 20 from the each side: 2) 2x = 80 - 20 3) 2x = 60 Divide everything by 2: 4) 2x/2 = 60/2 5) x = 30 So, the answer will be x = 30. Hope this helps!