To solve the equation $4x + 8 = 8x + 16$, we can follow these steps:

1. Subtract $4x$ from both sides: $4x + 8 - 4x = 8x + 16 - 4x$ This simplifies to: $8 = 4x + 16$

2. Subtract 16 from both sides: $8 - 16 = 4x + 16 - 16$ This simplifies to: $-8 = 4x$

3. Divide both sides by 4: $\frac{-8}{4} = \frac{4x}{4}$ This simplifies to: $x = -2$

So, the solution is $x = -2$.

Would you like more details or have any questions?

Here are 5 related questions:

1. What would the solution be if the equation was $4x + 8 = 8x + 20$?
2. How would the solution change if the equation was $4x + 8 = 8x + 8$?
3. Can you solve the equation $3x - 7 = 2x + 5$?
4. What happens if you add a constant to both sides of the equation $4x + 8 = 8x + 16$?
5. How can you check if $x = -2$ is the correct solution for the equation?

Tip: When solving equations, always aim to isolate the variable on one side to find its value.