Answer:
15
Step-by-step explanation:
-a -8b = -9 + 24 = 15
3x - 1 = 3x -1 because it's reflecting itself
Answer:
A.
Step-by-step explanation:
4 of a 10 because there is 4 blue marbles and 6 yellow
Answer: infinite solutions
Step-by-step explanation: any value of d makes the equation true. By simplifying the right side, we get -d + 4, which is the same as 4 - d, so we essentially get 4 - d = 4 - d.