Question

Solve for x.
(and for y too)

Answer 1

Find x:
Use the properties of "similar triangles:"

3 3+x+ 1
------ = --------------
2 2 +x - 1

Then 3(2-1+x) = 2(4+x), or 3 + 3x = 8 +2x.

This yields x = 5. Use a similar approach (similar triangles) to find y.