Math Problem Statement

|-5x + 8| = |2x - 2|

Solution

The equation shown in the image is:

5x+8=2x2|-5x + 8| = |2x - 2|

To solve this absolute value equation, we'll consider the cases where the expressions inside the absolute values are either equal or their negatives are equal.

Case 1:

5x+8=2x2-5x + 8 = 2x - 2

Solve for xx:

Add 5x5x to both sides:

8=7x28 = 7x - 2

Add 2 to both sides:

10=7x10 = 7x

Divide by 7:

x=107x = \frac{10}{7}

Case 2:

5x+8=(2x2)-5x + 8 = -(2x - 2)

Simplify the right-hand side:

5x+8=2x+2-5x + 8 = -2x + 2

Solve for xx:

Add 5x5x to both sides:

8=3x+28 = 3x + 2

Subtract 2 from both sides:

6=3x6 = 3x

Divide by 3:

x=2x = 2

Solutions

The solutions to the equation are x=107x = \frac{10}{7} and x=2x = 2.

Would you like more details on these steps or have any further questions?

Here are some related questions for practice:

  1. How would you solve an absolute value equation with three terms, such as ax+b+cx+d=ex+f|ax + b| + |cx + d| = |ex + f|?
  2. What happens when the expressions inside the absolute values are more complex, like quadratic expressions?
  3. How do you solve an absolute value inequality, such as ax+b<c|ax + b| < c?
  4. What are the key differences between solving absolute value equations and inequalities?
  5. How would you graph the equation 5x+8=2x2|-5x + 8| = |2x - 2|?

Tip: When solving absolute value equations, always remember to check your solutions in the original equation, as extraneous solutions can sometimes appear.

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Math Problem Analysis

Mathematical Concepts

Algebra
Absolute Value Equations

Formulas

|A| = |B| means A = B or A = -B

Theorems

Properties of Absolute Value

Suitable Grade Level

Grades 9-10