Question
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Solve for \( x \) and graph the solution on the number line below. \[ x+7 \geq 5 \]

Ask by Smith Marsh. in the United States
Feb 25,2025

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Tutor-Verified Answer

Answer

The solution is \( x \geq -2 \). On the number line, this is represented by a closed circle at -2 and an arrow extending to the right.

Solution

Step 1: Solve the inequality. Start with the inequality:   x + 7 ≥ 5 Subtract 7 from both sides:   x + 7 − 7 ≥ 5 − 7   x ≥ -2 So, the solution is all x such that x is greater than or equal to -2. Step 2: Graph on the Number Line. 1. Draw a horizontal line. 2. Mark the point -2 on the line. 3. Use a closed (filled-in) circle at -2 to indicate that -2 is included in the solution. 4. Shade or draw an arrow extending to the right of -2 to represent that all numbers greater than -2 are also included. The final graph looks like:   <---|-----●============>       -2 Thus, the answer is x ≥ -2 and the graph is a number line starting at -2 (filled in) and extending to positive infinity.

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Mind Expander

To solve the inequality \( x + 7 \geq 5 \), we first want to isolate \( x \). We can do this by subtracting 7 from both sides of the inequality: \[ x + 7 - 7 \geq 5 - 7 \] This simplifies to: \[ x \geq -2 \] Now, to graph this on the number line, you would place a closed dot at -2 (indicating that -2 is included in the solution) and shade to the right, showing that all numbers greater than -2 are included in the solution. Now, if you're looking for extra clarity, inequalities like this often show up in real-life scenarios, such as determining minimum values required for grades or budgets. You can think of this as finding out that if you want to score at least a 5 after accounting for points you’ve already won (7), you need to ensure your base score (x) is at least -2. Also, be sure to avoid common mistakes like flipping the inequality sign when adding or subtracting; this happens only when multiplying or dividing by a negative number! Keep practicing, and soon you'll become a pro at solving inequalities!

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