Question

find the value of x. 9. x =

Explanation:

Step1: Use the triangle angle - sum theorem

The sum of the interior angles of a triangle is \(180^{\circ}\). So, \(x + 2x+3x=180\).

Step2: Combine like terms

\(6x = 180\).

Step3: Solve for \(x\)

Divide both sides by \(6\): \(x=\frac{180}{6}\).

Answer:

\(30\)