Answer:
x = 5.25
Step-by-step explanation:
If I am understanding the question correctly, you are asking to find x when 4x=21? If this is the case, then all you must do is divide 21 by 4, then you get 5.25.
nnrm
19
Exact Form:
√5 + 5√2
__________
5
Decimal Form:
1.86142715
…
N/A