I think the answer is possibly B or D
I hope this helps ( there is no negatives )
Answer:
To find the value of y, you need to isolate the variable. To do this, add 21 to -12. This gives you 9. Now, you're equation is set as 9 = y. This means that the value of y is 9.
Step-by-step explanation:
The answer is W. (Please make me Brainliest.) Hope this helps!
28 I think is in between it