Math Problem Statement

Given the figure, find the values of x and z where two vertical angles are (6x + 7)° and (5x - 14)°.

Solution

The image shows a problem where we need to solve for the values of xx and zz given two pairs of vertical angles.

The equations are based on the properties of vertical angles:

  1. Vertical angles are equal, meaning that: (6x+7)=(5x14)(6x + 7)^\circ = (5x - 14)^\circ

  2. Also, the angle labeled zz^\circ is vertically opposite the angle labeled (6x+7)(6x + 7)^\circ, so: z=(6x+7)z^\circ = (6x + 7)^\circ

Step 1: Solve for xx

We start with the equation: 6x+7=5x146x + 7 = 5x - 14

Subtract 5x5x from both sides: x+7=14x + 7 = -14

Now subtract 7 from both sides: x=21x = -21

Step 2: Solve for zz

Since z=6x+7z = 6x + 7, substitute x=21x = -21 into the equation for zz: z=6(21)+7=126+7=119z = 6(-21) + 7 = -126 + 7 = -119

Thus, the values are: x=21,z=119x = -21, \quad z = -119

Would you like more details or have any questions?

5 Related Questions:

  1. How do we solve equations involving supplementary angles?
  2. What is the general property of vertical angles?
  3. Can vertical angles ever be unequal?
  4. How do we identify corresponding angles in parallel line problems?
  5. What if the angles were complementary instead of vertical?

Tip:

When solving equations involving angles, always check if the angles are vertical, supplementary, or complementary, as this helps in setting up the correct relationships.

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Math Problem Analysis

Mathematical Concepts

Geometry
Vertical Angles
Linear Equations

Formulas

Vertical angles are equal: (6x + 7) = (5x - 14)
Linear equation solving

Theorems

Vertical Angle Theorem

Suitable Grade Level

Grade 8-10