If it's not what You are looking for type in the equation solver your own equation and let us solve it.
N in (-oo:+oo)
N/4 = 12.4 // - 12.4
N/4-12.4 = 0
1/4*N-12.4 = 0 // + 12.4
1/4*N = 12.4 // : 1/4
N = 12.4/1/4
N = 49.6
N = 49.6
| 35n-1+46=80n | | x^2-y^2=2x+4y-3 | | 27j-6=14g+7 | | -y=2y^2-3 | | 7.2=0.9(n+0.9) | | X+6+x=3x-12-7x | | X/2-3=17= | | 4c+17+2c=-28+6c+42 | | 2(x+5)=5x+12-3x-2 | | y+3(45)+5+2y-50=180 | | 12(x+4)-5y=-20 | | X+6+x=30x-12-7x | | H(4)=2x^2-3x-6 | | 3-5n=-7 | | a+82=-a+4 | | 9x-5=84 | | 2p=km-tforx | | f(x)=64x^4-x | | (12d+12)=(12d+12) | | 12+6x-15=2x+3+2x | | 3z+3+4z=7.2 | | 5*e-4=226 | | -24=u^6 | | 3x+2x+5=4x-20 | | 8-x/25=50 | | 9*b-8=-206 | | 109=9x-8 | | 9*b-8=206 | | 8x+11x=-9 | | -10m-10=74 | | 3*a-3=-45 | | 34=2m-88 |