Welcome to Westonci.ca, the place where your questions find answers from a community of knowledgeable experts. Explore a wealth of knowledge from professionals across various disciplines on our comprehensive Q&A platform. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

Solve the compound inequality:

[tex]-5 \ \textless \ 2x + 3 \leq 22[/tex]

Enter the exact answer in interval notation.

To enter [tex]\infty[/tex], type infinity. To enter [tex]U[/tex], type U.


Sagot :

To solve the compound inequality [tex]\(-5 < 2x + 3 \leq 22\)[/tex], we'll break it down into two separate inequalities and solve each one step-by-step. Let's start with the first inequality.

### Step 1: Solve [tex]\(-5 < 2x + 3\)[/tex]

Subtract 3 from both sides to isolate the term with [tex]\(x\)[/tex]:

[tex]\[ -5 - 3 < 2x \][/tex]

[tex]\[ -8 < 2x \][/tex]

Now, divide both sides by 2 to solve for [tex]\(x\)[/tex]:

[tex]\[ \frac{-8}{2} < x \][/tex]

[tex]\[ -4 < x \][/tex]

This simplifies to:

[tex]\[ x > -4 \][/tex]

### Step 2: Solve [tex]\(2x + 3 \leq 22\)[/tex]

Subtract 3 from both sides to isolate the term with [tex]\(x\)[/tex]:

[tex]\[ 2x + 3 - 3 \leq 22 - 3 \][/tex]

[tex]\[ 2x \leq 19 \][/tex]

Now, divide both sides by 2 to solve for [tex]\(x\)[/tex]:

[tex]\[ x \leq \frac{19}{2} \][/tex]

[tex]\[ x \leq 9.5 \][/tex]

### Step 3: Combine the results

We now have two results:

[tex]\[ x > -4 \][/tex]

[tex]\[ x \leq 9.5 \][/tex]

Combining these results into a single compound inequality, we get:

[tex]\[ -4 < x \leq 9.5 \][/tex]

### Step 4: Write the solution in interval notation

The solution to the compound inequality in interval notation is:

[tex]\[ (-4, 9.5] \][/tex]

This means that [tex]\(x\)[/tex] is greater than [tex]\(-4\)[/tex] but less than or equal to [tex]\(9.5\)[/tex].
Thanks for using our service. We aim to provide the most accurate answers for all your queries. Visit us again for more insights. Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Thank you for using Westonci.ca. Come back for more in-depth answers to all your queries.