7.

Solve the inequality.

–2 < 4 x – 10 < 6


–16 < x < –8

2 < x < 4

– 3 < x < – 1

4 < x < 12

1 answer

To solve the compound inequality \(-2 < 4x - 10 < 6\), we can break it down into two inequalities and solve each part separately.

Step 1: Solve the left inequality

\(-2 < 4x - 10\)

Add 10 to both sides:

\(-2 + 10 < 4x\)

This simplifies to:

\(8 < 4x\)

Now, divide both sides by 4:

\(\frac{8}{4} < x\)

Which gives:

\(2 < x\) or equivalently \(x > 2\).

Step 2: Solve the right inequality

\(4x - 10 < 6\)

Add 10 to both sides:

\(4x < 6 + 10\)

This simplifies to:

\(4x < 16\)

Now, divide both sides by 4:

\(x < \frac{16}{4}\)

Which gives:

\(x < 4\).

Step 3: Combine the results

From the two parts, we have:

\(2 < x < 4\)

So the solution to the compound inequality \(-2 < 4x - 10 < 6\) is:

\(\boxed{2 < x < 4}\).