Let's check if \( x = 10 \) is a solution to the equation \( -10 = -5(x + 3) \) by substituting \( x = 10 \) into the equation.

Substitute \( x = 10 \) into the equation:

\[
-10 = -5(10 + 3)
\]

Now, simplify the right side:

\[
-10 = -5(13)
\]

\[
-10 = -65
\]

Since \(-10\) is not equal to \(-65\), \( x = 10 \) is **not** a solution to the equation \( -10 = -5(x + 3) \).

Would you like more details, or do you have any questions about this?

Here are 5 related questions:
1. What value of \( x \) would make \( -10 = -5(x + 3) \) true?
2. How do you solve for \( x \) in the equation \( -5(x + 3) = -10 \)?
3. What are the steps to verify if a given value is a solution to an equation?
4. What would happen if we divided both sides of the equation \( -10 = -5(x + 3) \) by \(-5\)?
5. How can we graphically represent the equation \( -10 = -5(x + 3) \)?

**Tip:** Always simplify the equation step-by-step to avoid errors when checking if a value is a solution.

Explore the process of checking if x = 10 is a solution to the equation -10 = -5(x + 3) through substitution and simplification. This problem involves equations, substitution method, and simplification steps, suitable for Grades 7-9.

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