Let's simplify the expression step by step:

\[
0.8x + 40 - 8x - 35
\]

1. Combine like terms: \(0.8x\) and \(-8x\).
   \[
   0.8x - 8x = -7.2x
   \]

2. Now, combine the constants \(40\) and \(-35\).
   \[
   40 - 35 = 5
   \]

So, the simplified expression is:
\[
-7.2x + 5
\]

Would you like more details on any of these steps, or do you have any questions?

Here are 5 related questions:
1. How would you solve the equation if it were set equal to a number, like \(0.8x + 40 - 8x - 35 = 10\)?
2. What happens if you distribute a number over the expression?
3. Can you factor out the \(x\) from the terms involving \(x\) in a similar expression?
4. How would this expression change if you had exponents on the \(x\) terms?
5. What if you substitute a value for \(x\) in the expression?

**Tip**: When simplifying expressions, always look to combine like terms and constants to streamline your calculations.

Learn how to simplify the algebraic expression 0.8x + 40 - 8x - 35 by combining like terms. This problem is suitable for students in Grades 6-8, focusing on basic algebraic concepts and simplifying expressions.

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