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9 votes
9 votes
Solve the following inequality: |2x|<14 A. 7

User Apneadiving
by
2.9k points

2 Answers

24 votes
24 votes

Answer:

x<7

Explanation:

it just is

User Hugh Jones
by
2.9k points
14 votes
14 votes

Answer:

x > 7

x < -7

Explanation:

Absolute value inequalitiy entered

|2x| > 14

Clear the absolute-value bars by splitting the equation into its two cases, one for the Positive case and the other for the Negative case.

The Absolute Value term is |2x|

For the Negative case we'll use -(2x)

For the Positive case we'll use (2x)

-(2x) > 14

Multiply

-2x > 14

Divide both sides by 2

-x > 7

Multiply both sides by (-1)

Remember to flip the inequality sign

x < -7

Which is the solution for the Negative Case

(2x) > 14

Divide both sides by 2

x > 7

Which is the solution for the Positive Case

x < -7

x > 7

(-∞,-7)

(7,+∞)

User Jamesblasco
by
2.6k points