Question

1. solve for x.

Explanation:

Step1: Recall angle - sum property of a triangle

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

Step2: Combine like - terms

Combining the \(x\) terms on the left - hand side gives \(6x = 180\).

Step3: Solve for \(x\)

Dividing both sides of the equation \(6x = 180\) by 6, we get \(x=\frac{180}{6}=30\).

Answer:

30