For what value of x of line a parallel to line b?

Answer:The answer to your question is: x = 22Step-by-step explanation:If line a is parallel to line b, 4x + 28 = 116 (corresponding angles)                                       4x + 28 = 116                                       4x = 116 - 28                                       4x = 88                                         x = 88/4                                         x = 22