Create a four types of two steps each with different operation. Solve them and explain the steps you use to them.

4 + 5 = 9

9 – 5 = 4

9 – 5 ≠ 5 – 9

9 – 4 = 9 + (–4)

idk i would have to be there to under stand it

step-by-step explanation:

idk i would have to be there to under stand it

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.