Question

what is the value of x?
30
45
55
60

Explanation:

Step1: Use the property of supplementary angles

Supplementary angles sum to \(180^{\circ}\). So, \(x + 3x=180\).

Step2: Solve the equation

Combine like terms: \(4x = 180\). Then divide both sides by 4: \(x=\frac{180}{4}=45\).

Answer:

45