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Solve the compound inequality for [tex]\( x \)[/tex] and identify the graph of its solution.

[tex]\[ x + 7 \ \textless \ 3 \text{ or } x - 5 \geq -1 \][/tex]

A. Solution: [tex]\( x \ \textless \ -4 \)[/tex] or [tex]\( x \geq 4 \)[/tex]

B. Solution: [tex]\( x \ \textless \ -4 \)[/tex] or [tex]\( x \geq 4 \)[/tex]

C. Solution: [tex]\( x \ \textgreater \ -4 \)[/tex] and [tex]\( x \leq 4 \)[/tex]

D. Solution: [tex]\( x \leq -4 \)[/tex] or [tex]\( x \ \textgreater \ 4 \)[/tex]


Sagot :

Let's solve the compound inequality step by step:

Given compound inequality:

[tex]\[ x + 7 < 3 \text{ or } x - 5 \geq -1 \][/tex]

We will solve each inequality separately.

### Solving the first part: [tex]\( x + 7 < 3 \)[/tex]

1. Isolate [tex]\( x \)[/tex] by subtracting 7 from both sides:
[tex]\[ x + 7 - 7 < 3 - 7 \][/tex]
2. Simplify the inequality:
[tex]\[ x < -4 \][/tex]

### Solving the second part: [tex]\( x - 5 \geq -1 \)[/tex]

1. Isolate [tex]\( x \)[/tex] by adding 5 to both sides:
[tex]\[ x - 5 + 5 \geq -1 + 5 \][/tex]
2. Simplify the inequality:
[tex]\[ x \geq 4 \][/tex]

### Combining the solutions

The solutions to the inequalities are:
- [tex]\( x < -4 \)[/tex]
- [tex]\( x \geq 4 \)[/tex]

These two inequalities are combined with the logical "or". This means [tex]\( x \)[/tex] satisfies either one of the inequalities. So the final solution is:

[tex]\[ x < -4 \text{ or } x \geq 4 \][/tex]

### Identifying the correct solution

The correct complete solution is:
[tex]\[ x < -4 \text{ or } x \geq 4 \][/tex]

From the provided options, we identify that:

A. Solution: [tex]\( x < -4 \text{ or } x \geq 4 \)[/tex]
B. Solution: [tex]\( x < -4 \text{ or } x \geq 4 \)[/tex]
C. Solution: [tex]\( x > -4 \text{ and } x \leq 4 \)[/tex]
D. Solution: [tex]\( x \leq -4 \text{ or } x > 4 \)[/tex]

Both options A and B present the correct solution notation. C and D are incorrect.

Thus, the correct solutions are:

A. Solution: [tex]\( x < -4 \text{ or } x \geq 4 \)[/tex]

and

B. Solution: [tex]\( x < -4 \text{ or } x \geq 4 \)[/tex]

So, either option A or B is correct.