Respuesta :
Answer:
Step-by-step explanation:
We can add like terms. Like terms are when the variables are alike, so you can add them to get a simpler form of your expression.equation.
4d and 2d are like terms, therefore, we can add them.
6d+6 is what we are left with.
Our final answer: 6d+6 is equivalent to 4d+6+2d
