Solving the Absolute Value Equation: Discover x When |x - 1| = 6

Question

x1=6 \left|x-1\right|=6

Video Solution

Step-by-Step Solution

To solve the equation x1=6 |x-1| = 6 , we will use the definition of absolute value to create two separate linear equations:

  • Equation 1: x1=6 x - 1 = 6
  • Equation 2: x1=6 x - 1 = -6

Let's solve each equation separately:

For the first equation x1=6 x - 1 = 6 :

  • Add 1 to both sides of the equation:
    x1+1=6+1 x - 1 + 1 = 6 + 1
    This simplifies to x=7 x = 7 .

For the second equation x1=6 x - 1 = -6 :

  • Add 1 to both sides of the equation:
    x1+1=6+1 x - 1 + 1 = -6 + 1
    This simplifies to x=5 x = -5 .

Thus, the solutions to the equation x1=6 |x-1| = 6 are x=5 x = -5 and x=7 x = 7 .

Therefore, the correct solutions are x=5 x = -5 and x=7 x = 7 .

Answer

x=5 x=-5 , x=7 x=7