Question

What is the value of x?

Answer 1

Answer:

x = 20

General Formulas and Concepts:

Algebra I

Equality Properties

• Multiplication Property of Equality
• Division Property of Equality
• Addition Property of Equality
• Subtraction Property of Equality

Terms/Coefficients

Geometry

Vertical Angles

Step-by-step explanation:

Step 1: Define

Identify: ∠TRS is an vertical angle to ∠VRW

x + 40 = 3x

Step 2: Solve for x

1. [Subtraction Property of Equality] Subtract x on both sides:                        40 = 2x
2. [Division Property of Equality] Divide 2 on both sides:                                 20 = x
3. Rewrite:                                                                                                             x = 20

Answer 2

Answer:

20

Step-by-step explanation:

x+40=3x  (opposite angles are the same)

subtract x

40=2x

divide by 2

x=20