If the equation is solved, which is true? (Round to the nearest tenth as needed)
A.
If 3+ n = 13, then n = 16
B
If 3 + n = 13, then n = 10.0
=
С
If 3 - n = 13, then n = 16.0
D
If n+ 3 = 13, then n = 4.33333...
E
I don't know yet