Math Problem Statement

How many solutions does the equation |2x -1 | = 5 have?

Solution

To solve the equation 2x1=5|2x - 1| = 5, we need to consider two possible cases for the absolute value:

Case 1: 2x1=52x - 1 = 5

Solve for xx: 2x1=52x - 1 = 5 Add 1 to both sides: 2x=62x = 6 Divide both sides by 2: x=3x = 3

Case 2: 2x1=52x - 1 = -5

Solve for xx: 2x1=52x - 1 = -5 Add 1 to both sides: 2x=42x = -4 Divide both sides by 2: x=2x = -2

Conclusion:

The two solutions to the equation 2x1=5|2x - 1| = 5 are x=3x = 3 and x=2x = -2.

Thus, there are 2 solutions.

Would you like a more detailed explanation of absolute value equations or have any other questions?

Here are some related questions:

  1. How do you solve absolute value equations with a negative value on the right-hand side?
  2. What is the meaning of an absolute value function graphically?
  3. How do absolute value equations change when there are multiple terms inside the absolute value?
  4. How do you solve absolute value inequalities?
  5. How can you apply absolute value equations in real-world problems?

Tip: Always split the absolute value equation into two separate equations—one for the positive value and one for the negative value.

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Math Problem Analysis

Mathematical Concepts

Absolute Value Equations
Linear Equations

Formulas

|a| = b → a = b or a = -b

Theorems

Absolute value property

Suitable Grade Level

Grades 7-9