Math Problem Statement
Find the value of x and the angles ABD and DBC if (2x + 23)° and (9x - 5)° form a straight line.
Solution
The image shows an angle diagram with three labeled points: , , and , where two angles are given:
- Angle
- Angle
Since the two angles and form a straight line (which equals 180°), we can write the equation:
Let's solve for .
Step-by-step Solution:
-
Combine like terms:
-
Subtract 18 from both sides:
-
Solve for by dividing both sides by 11:
Thus, .
Now, let's find the angles:
Check:
So, the solution is consistent.
Would you like more details on the process? Here are some related questions:
- What if the angles didn't form a straight line?
- Can you explain angle relationships in a triangle?
- How can I verify the consistency of solutions in geometry problems?
- What are the applications of this angle relationship concept?
- How does the straight angle property help solve equations?
Tip: Always double-check the sum of your angles in geometry problems to ensure they meet the required condition (e.g., straight line = 180°, triangle = 180°, etc.).
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Algebra
Geometry
Linear Pair of Angles
Formulas
(2x + 23) + (9x - 5) = 180
x = 162 / 11
Theorems
Linear Pair Theorem
Suitable Grade Level
Grades 8-10