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  • 25-02-2020
  • Mathematics
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Which of the following is(are) the solution(s) to |x-1|- 8?
O A. x=-7,9
O B. x=7
O C. =7,-9
O D. x=9
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bhuvna789456
bhuvna789456 bhuvna789456
  • 25-02-2020

Solutions are -7 and 9

Step-by-step explanation:

  • Step 1: Given |x-1| - 8. To solve it, equate it to zero.

⇒ |x-1| - 8 = 0

⇒ ± (x - 1) - 8 = 0

⇒ x - 1 - 8 = 0 and -x + 1 - 8 = 0

⇒ x - 9 = 0 and -x - 7 = 0

⇒ x = 9 and x = -7

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