If it's not what You are looking for type in the equation solver your own equation and let us solve it.
n+4.31=13.9
We move all terms to the left:
n+4.31-(13.9)=0
We add all the numbers together, and all the variables
n-9.59=0
We move all terms containing n to the left, all other terms to the right
n=9.59
| 6+6d=13+2d | | 5=-30/v | | 20x+10=50+15x | | 0=2x*2-6x-7 | | 0.4y-4=2-0.6y+6 | | (1/4)(x+1)^2+5=7 | | 40k^2-110k+70=0 | | 23.5+x=-35.4 | | `25x-17=58` | | 1.75=5+n | | 16=4(p−13) | | 16.9-2.3x=30 | | x/5-16=28 | | -6(n-12)=0 | | 3+10v=53 | | (2x–9)(x+5)=0 | | 2+8d=58 | | 10-6x-9x^2=-9 | | 4x-11=2x+19 | | 2-7x-3x=8x-8 | | 28y^2+27y-1=0 | | 2-7x-3x=8-8 | | 6(x+4)+5x=0.5(x+8)-1 | | 2-7x-3x=-8-8 | | 33s^2+96s=0 | | 11.21=x-3.14*x= | | X^2-14/2x=-5x/2x | | (h+8)/4h=16 | | (6y-18)/6=5 | | 100=37.52+0.50x | | 9(h-4)=77 | | 3t^2+12t+12=0 |