Answer:
(
Step-by-step explanation:
STEP 1:

- 

STEP 2:
*
- 
STEP 3:

STEP 4:
(
Since r is being divided by N, we need to multiply both sides by N.
We are left with R + T = 4v/n
Now, we subtract T from each side. The equation is now R = 4V/N - T
We have now solved for R.
You learn more from failure than from success. Don’t let it stop you. Failure builds character.
Answer: your answer is -10
Step-by-step explanation:j
if you dont believe me check your answer on a math website