SOLUTION: write a two column proof. if m<ABC + m<CBD = 90, m<ABC = 3x-5, and m<CBD = 14

Algebra ->  Geometry-proofs -> SOLUTION: write a two column proof. if m<ABC + m<CBD = 90, m<ABC = 3x-5, and m<CBD = 14      Log On


   

Question 509435: write a two column proof.
if m
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
What is there to prove? We can find the value of x, but a two-column proof isn't quite necessary.

We have "(3x - 5) + 14 = 90" so 3x + 9 = 90, 3x = 81, x = 27.