3 years ago

The solution set of the equation Ix-1I=3 is

Mathematics

1 answer:

vladimir2022 [97]3 years ago

7 0

Answer:

x = - 2 or x = 4

Step-by-step explanation:

the expression inside the absolute value can be positive or negative

Removing the bars and solve x - 1 = ± 3

x - 1 = - 3 or x - 1 = 3

x - 1 = - 3 ( add 1 to both sides ) ⇒ x = - 2

x - 1 = 3 ( add 1 to both sides ) ⇒ x = 4

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