Solve |2x + 3| > 4x + 1: Absolute Value Inequality Challenge

Given:

2x+3>4x+1 \left|2x + 3\right| > 4x + 1

Which of the following statements is necessarily true?

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1

Understand the problem

Given:

2x+3>4x+1 \left|2x + 3\right| > 4x + 1

Which of the following statements is necessarily true?

2

Step-by-step solution

To solve 2x+3>4x+1 \left|2x + 3\right| > 4x + 1 , we need to consider two cases based on the definition of absolute value:

1. 2x+3>4x+1 2x + 3 > 4x + 1

2. 2x+3<(4x+1) 2x + 3 < -(4x + 1)

Solving the first inequality:

2x+3>4x+13>4x2x+13>2x+12>2xx<1 2x + 3 > 4x + 1 \Rightarrow 3 > 4x - 2x + 1 \Rightarrow 3 > 2x + 1 \Rightarrow 2 > 2x \Rightarrow x < 1

Solving the second inequality:

2x+3<4x16x<4x<23 2x + 3 < -4x - 1 \Rightarrow 6x < -4 \Rightarrow x < -\frac{2}{3}

These inequalities indicate that x<1 x < 1 is the range that satisfies the original inequality.

3

Final Answer

x<1 x < 1

Practice Quiz

Test your knowledge with interactive questions

Given:

\( \left|2x-1\right|>-10 \)

Which of the following statements is necessarily true?

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