Solve the inequality [tex]\frac{x}{5} - 4 \ \textgreater \ -3[/tex] for [tex]x[/tex]. Show your work. Then graph the solution set.



Answer :

To solve the given inequality [tex]\(\frac{x}{5} - 4 > -3\)[/tex] for [tex]\(x\)[/tex], we will follow a step-by-step approach:

### Step 1: Isolate the variable term
First, we need to get the term with [tex]\(x\)[/tex] on one side by itself. We start by adding 4 to both sides of the inequality:
[tex]\[ \frac{x}{5} - 4 + 4 > -3 + 4 \][/tex]
[tex]\[ \frac{x}{5} > 1 \][/tex]

### Step 2: Eliminate the fraction
Next, we need to eliminate the fraction by multiplying both sides of the inequality by 5:
[tex]\[ 5 \cdot \frac{x}{5} > 5 \cdot 1 \][/tex]
[tex]\[ x > 5 \][/tex]

### Step 3: Interpret the solution
The solution to the inequality [tex]\(x > 5\)[/tex] is all real numbers greater than 5. In interval notation, this can be expressed as:
[tex]\[ (5, \infty) \][/tex]

### Step 4: Graph the solution set
To graph the solution set [tex]\(x > 5\)[/tex], we can follow these steps:

1. Draw a number line.
2. Find and mark the point 5 on the number line.
3. Since the inequality is strict (i.e., [tex]\(>\)[/tex] not [tex]\(\geq\)[/tex]), we use an open circle at 5 to indicate that 5 is not included in the solution set.
4. Shade the number line to the right of 5 to represent all numbers greater than 5.

Here is the visual representation of the solution on the number line:

```
<--|----|----|----|----|----|----|----|----|----|-->
0 1 2 3 4 5 6 7 8 ...
o======>
```

The shaded part and the open circle at 5 represent the solutions for [tex]\(x > 5\)[/tex].

So, the inequality [tex]\(\frac{x}{5} - 4 > -3\)[/tex] has [tex]\(x > 5\)[/tex] as its solution, and this is shown on the graph as described.