Question

In the figure below, if BE is the perpendicular bisector of AD, what is the value of x?

Answer 1

Both sides are the same, set them to equal and solve for X.

3X +4 = X +12

Subtract 4 from each side:

3X = x + 8

Subtract 1X from each side:

2X = 8

Divide both sides by 2:

X = 8/2

X = 4