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When 3x + 2 ≤ 5(x - 4) is solved for x, the solution is

​A. x ≤ 3
B. x ≥ 3
C. x ≤ 11
D. x ≥ 11

User Weicheng
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1 Answer

2 votes

Final answer:

The inequality 3x + 2 ≤ 5(x - 4) simplifies to x ≥ 11 when solved step-by-step, isolating the variable x. This corresponds to option D, which is the correct answer.

Step-by-step explanation:

To solve the inequality 3x + 2 ≤ 5(x - 4), we must first expand and simplify the equation:

  1. Expand the right side: 3x + 2 ≤ 5x - 20.
  2. Subtract 3x from both sides: 2 ≤ 2x - 20.
  3. Add 20 to both sides: 22 ≤ 2x.
  4. Finally, divide both sides by 2 to isolate x: 11 ≤ x or x ≥ 11.

This gives us the answer that x is greater than or equal to 11, which matches option D.

The inequality we started with is a linear equation, as it can be rewritten in the form ax + b ≤ c once simplified. During the process, we aim to isolate the variable on one side to find the range of values that satisfy the inequality.

User Evil Pigeon
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