3 years ago

Solve |2x - 5| = 4. {x | x = 0.5 or x = 4.5} {x | 0.5 < x < 4.5} {x | x = -4.5 or x = 4.5} Solve |2x - 5| = 4.

Mathematics

1 answer:

stiks02 [169]3 years ago

3 0

Answer:

x = 4.5 x = .5

Step-by-step explanation:

|2x - 5| = 4

The absolute value has two solutions one positive and one negative

2x-5 = 4 2x-5 = -4

Add 5 on each side

2x-5+5 = 4+5 2x-5+5 = -4+5

2x = 9 2x =1

Divide by 2

2x/2 =9/2 2x/2 = 1/2

x = 4.5 x = .5

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