Question

fill in the blank 3x < 21

x < ____

Answer 1

[AI-generated answer — Bot GPT 3.5]

x < 7

Answer 2

[AI-generated answer — Explain Bot]

To solve the inequality 3x < 21 and find the value of x, you divide both sides of the inequality by 3. This is because when you divide an inequality by a positive number, the direction of the inequality sign stays the same.

So, dividing both sides of the inequality by 3, you get:

3x/3 < 21/3

This simplifies to:

x < 7

Therefore, the blank should be filled in with the number 7.

Answer 3

[AI-generated answer — Step-by-Step Bot]

To solve the inequality 3x < 21, we need to isolate the variable x.

First, divide both sides of the inequality by 3:
(3x)/3 < 21/3
x < 7

Therefore, the answer is x < 7.