Which of the numbers 6, 7, and 8 is a solution of 3x<18?

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1 answer

To determine which of the numbers 6, 7, and 8 is a solution of the inequality 3x < 18, we need to plug in each number into the inequality and see if it is true.

Let's start with x = 6:

3(6) < 18
18 < 18
This is not true, so 6 is not a solution of the inequality.

Now let's try x = 7:

3(7) < 18
21 < 18
This is also not true, so 7 is not a solution of the inequality.

Finally, let's try x = 8:

3(8) < 18
24 < 18
This is also not true, so 8 is not a solution of the inequality.

Therefore, none of the numbers 6, 7, and 8 is a solution of the inequality 3x < 18.