Solve the System of Absolute Value Equations: |x-11|-1=5 and |x-5|=0

Question

{x111=5x5=0 \begin{cases} ||x-11|-1|=5 \\ |x-5|=0 \end{cases}

Video Solution

Step-by-Step Solution

To solve this system of absolute value equations, we follow these steps:

  • Step 1: Solve the equation x5=0 |x-5|=0 .
  • Step 2: Validate the result with the other equation x111=5 ||x-11|-1|=5 .

Let's work through each step:

Step 1: Solve x5=0 |x-5|=0 .
The equation x5=0 |x-5| = 0 implies that the expression inside the absolute value must be zero. Therefore, x5=0 x-5=0 gives us:

x=5 x = 5

Step 2: Validate with x111=5 ||x-11|-1|=5 .
Now, substitute x=5 x = 5 into the other equation:

511=6=6 |5-11| = | -6 | = 6

61=5=5 |6-1| = |5| = 5

This simplifies to 5=5 |5| = 5 , which is true. Therefore, the solution x=5 x = 5 satisfies both equations.

Thus, the system of equations has a single solution: x=5 x = 5 .

Answer

x=5 x=5