Question

Solve for x can someone please answer please help

Answer 1

4

Please see the photo I added, if you do not understand, specify in the comments...

Answer 2

In triangle ABC and triangle ADE

angle A = angle A (common)

angle ABC = angle ADE

By AA similarity criterion , they are similar

Thus

AB/AD = BC/DE

4/12 = x/12

Thus x = 4