Answer:
x = 30
Step-by-step explanation:
The angles were not very clear in this diagram. However, I'm assuming that the angle is the bottom right of the written terms. Since lines l and m are parallel, the two angles are equal and corresponding to each other.
Hence, 6x - 63 = 4x - 3
Subtract both sides by 4x and you will get 2x - 63 = -3.
Now, add 63 on both sides to get 2x = -3+63 = 60.
Hence, x = 60/2 = 30
