The question you posted doesn't really show the question. Are there any words like how, when, where.... and do you have answer choices? : ) maybe then I can help?
Answer:
-7 and -5
AND
-3 and -1
Step-by-step explanation:
Answer:c=(-15-9d)/6
Step-by-step explanation:
15=-3(2c+3d)
Open brackets
15=-6c-9d
Add 9d to both sides
15+9d=-6c-9d+9d
15+9d=-6c
Divide both sides by -6
(15+9d)/-6=-6c/-6
-(15+9d)/6=c
c=-(15+9d)/6
c=(-15-9d)/6
Not sure if your trying to solve for x or v