Math Problem Statement
2|x-1|=8+2x
Solution
Let's solve the equation .
Step 1: Simplify both sides
Divide both sides of the equation by 2 to make it easier to work with:
Step 2: Break into two cases
Since we're dealing with an absolute value equation, we must consider two cases: when the expression inside the absolute value is positive, and when it's negative.
Case 1: (i.e., )
In this case, . The equation becomes:
Subtract from both sides:
This is a contradiction, so there is no solution for this case.
Case 2: (i.e., )
In this case, . The equation becomes:
Now, solve for :
-
Add to both sides:
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Subtract 4 from both sides:
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Divide by 2:
Final Answer:
The solution is .
Would you like further clarification on any part of this? Here are some related questions for practice:
- Solve: .
- Solve: .
- Solve: .
- Solve: .
- Solve: .
Tip: When dealing with absolute value equations, always remember to consider both positive and negative cases separately.
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Math Problem Analysis
Mathematical Concepts
Algebra
Absolute Value Equations
Linear Equations
Formulas
Absolute value equation: |x - a| = b
Linear equation: ax + b = 0
Theorems
Properties of absolute value: |x| = x if x >= 0, and |x| = -x if x < 0
Suitable Grade Level
Grades 8-10