Let's carefully go through the step of subtracting 7 from both sides in the equation \( x + 7 = 0 \).

The goal is to isolate \( x \) on one side of the equation. To do this, we need to eliminate the \( +7 \) on the left side.

The process is:

1. The equation is:
   \[
   x + 7 = 0
   \]

2. To remove the \( +7 \) from the left side, subtract 7 from both sides of the equation. Here's what it looks like:
   \[
   x + 7 - 7 = 0 - 7
   \]

3. Simplifying both sides gives:
   \[
   x = -7
   \]

This is how subtracting 7 from both sides works. The idea is that whatever operation you perform on one side of the equation, you must perform the same operation on the other side to maintain the equality.

Would you like further clarification or have any questions?

Here are 5 related questions for further exploration:
1. What happens if we need to subtract or add negative numbers on both sides?
2. Can you show how to solve \( 3x + 5 = 2x + 9 \) by using similar steps?
3. How would the process change if there was a multiplication term instead of addition?
4. How do you handle equations with multiple variables, like \( 2x + 3y = 7 \)?
5. What is the next step after isolating \( x \) in more complex equations?

**Tip:** Always perform the same operation on both sides of an equation to keep the equation balanced.

Learn how to subtract 7 from both sides of an equation with a step-by-step guide. Understand the fundamental principle of maintaining equality in equations through balanced operations. Suitable for students in Grades 7-9.

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