To solve the equation $x + 4 = 7$, follow these steps:

1. Subtract 4 from both sides to isolate $x$:

$x + 4 - 4 = 7 - 4$

$x = 3$

So, the solution is $x = 3$.

Would you like more details or have any questions?

Here are 5 related questions for practice:

1. Solve $x - 5 = 10$.
2. Solve $2x + 4 = 10$.
3. Solve $3 + x = 12$.
4. Solve $x + 6 = 0$.
5. Solve $x + 8 = 15$.

Tip: Always perform the same operation on both sides of an equation to keep it balanced.