R = -2 :) hope this helps
Answer:
It's not 2pi/3 so my next guess would be pi/3 but im not sure
Step-by-step explanation:
Answer:
No solution
Step-by-step explanation:
21−7x=−7x−21−4
21−7x=−7x−25
21=−25
No solution
There is on equation to solve for x so I think it is wrong