To solve the equation \( 5x + 3.5 = -1.5 \), follow these steps:

### Step 1: Subtract 3.5 from both sides.
\[
5x = -1.5 - 3.5
\]
\[
5x = -5
\]

### Step 2: Divide both sides by 5.
\[
x = \frac{-5}{5}
\]
\[
x = -1
\]

### Final answer: \( x = -1 \).

Would you like any further explanation or details on this? 

Here are 5 related questions to expand your understanding:
1. What happens if the coefficient of \(x\) changes to a different number?
2. How do you solve an equation with decimals on both sides?
3. Can you solve for \(x\) if the equation was \(5x + 3.5 = 0\)?
4. What if the equation has fractions instead of decimals?
5. How can you verify the solution \(x = -1\) is correct?

**Tip:** Always check your solution by substituting it back into the original equation to ensure it satisfies the equation!

Learn how to solve the linear equation 5x + 3.5 = -1.5 with a step-by-step solution. This problem introduces basic algebraic techniques for isolating variables, suitable for students in Grades 6-8.

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