Question

find the value of x.

Explanation:

Step1: Use the triangle angle sum property

The sum of angles in a triangle is \(180^{\circ}\). So, \(45^{\circ}+84^{\circ}+x^{\circ}=180^{\circ}\).

Step2: Solve for \(x\)

First, add \(45\) and \(84\): \(45 + 84=129\). Then, \(x=180 - 129\).

Answer:

\(51\)