Math Problem Statement

Given m parallel to n, find the value of x.

Solution

In this image, we have two parallel lines mm and nn intersected by a transversal line. The angles given are (9x8)(9x - 8)^\circ and (4x+22)(4x + 22)^\circ.

Since the lines are parallel, the two angles formed are alternate interior angles, which means they are equal. Therefore, we can set up the following equation:

9x8=4x+229x - 8 = 4x + 22

Solving the Equation

  1. Rearrange the equation to bring like terms together: 9x4x=22+89x - 4x = 22 + 8 5x=305x = 30

  2. Solve for xx: x=305=6x = \frac{30}{5} = 6

Answer

The value of xx is 66.

Would you like more details or have any questions about the solution?

Related Questions

  1. What are alternate interior angles, and why are they equal when lines are parallel?
  2. How would the problem change if the lines mm and nn were not parallel?
  3. What is the value of the angles when x=6x = 6?
  4. How can you identify which angles are alternate interior in a transversal setup?
  5. What other angle relationships exist in a transversal, such as corresponding angles?

Tip

Remember that when a transversal crosses two parallel lines, alternate interior angles are always congruent!

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Math Problem Analysis

Mathematical Concepts

Algebra
Parallel Lines
Transversals
Alternate Interior Angles

Formulas

Equation of alternate interior angles: angle 1 = angle 2

Theorems

Alternate Interior Angles Theorem

Suitable Grade Level

Grades 8-10