Answer:
the last one 3(x+4) = 3x + 12
Step-by-step explanation:
Since both sides has same factor (x+6), we can set (x+6) equal to 0.
So we would have one of solution x = -6. (because this would have us x·0 = 4·0 )
Now when x is NOT equal to -6, we can divide both sides by (x+6), leaving us
x = 4
So answer is x = -6 or 4.
If you simply solve the equation you find that the letter D is equal to 9. We have no idea what that tells us about bean plants because you haven't explained anything about how the equation can be used.
The answer is 12 + 12 = 24