Simplify the expression:

4(x + 3) - 10 + 6x
Explain your answer. Be thorough.

First, distribute the 4:

4x + 12 - 10 + 6x

Combine like terms (4x and 6x):

10x + 2

So the simplified expression is 10x + 2.

We simplified by distributing the 4 and combining like terms, which is just adding or subtracting numbers or variables that are alike. This is standard practice in algebra and helps to simplify expressions and make them easier to work with.