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Question Solve the compound inequality and write the solution in interval notation: -5<=4x-1<7.

User Ba
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Answer:

Explanation:

To solve the compound inequality -5 <= 4x - 1 < 7, we'll need to solve each inequality separately and then combine the solutions.

Starting with -5 <= 4x - 1, we'll add 1 to both sides:

-5 + 1 <= 4x - 1 + 1

-4 <= 4x

Dividing both sides by 4 (and remembering to flip the inequality since we're dividing by a positive number), we get:

-1 <= x

Now let's look at 4x - 1 < 7. We'll add 1 to both sides here too:

4x - 1 + 1 < 7 + 1

4x < 8

Dividing both sides by 4:

x < 2

So our solutions for the compound inequality are:

-1 <= x < 2

In interval notation, we write this as:

[-1, 2)

User Wilson Wu
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