Let's solve the equation \(-(-12) = 3x\).

### Step 1: Simplify the left-hand side
\[
-(-12) = 12
\]
So, the equation becomes:
\[
12 = 3x
\]

### Step 2: Solve for \(x\)
To find \(x\), divide both sides of the equation by 3:
\[
x = \frac{12}{3} = 4
\]

Thus, the solution is \(x = 4\).

Would you like further details or have any questions?

Here are 5 related questions:
1. How would the solution change if the equation was \(-(-12) = 4x\)?
2. What happens if we change the negative sign to positive on both sides?
3. Can you solve for \(x\) if the equation was \(3x - 4 = 8\)?
4. How would you solve \(-(-x) = 3x\)?
5. What happens if there is an additional constant on both sides of the equation?

**Tip:** Always simplify expressions on both sides of an equation before solving for unknowns.

Discover how to solve the linear equation -(-12) = 3x through a simple step-by-step guide. This algebra problem covers solving linear equations, simplifying expressions, and understanding the properties of equality, suitable for Grades 6-8.

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