Question

1. solve for x.

Explanation:

Step1: Recall angle - sum property

The sum of interior angles of a triangle is 180°. So, \(2x + 3x+4x=180\).

Step2: Combine like - terms

\((2 + 3+4)x=180\), which simplifies to \(9x = 180\).

Step3: Solve for x

Divide both sides by 9: \(x=\frac{180}{9}\).

Answer:

\(x = 20\)