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/(-8) = -13 // + 13
N/(-8)+13 = 0
13-1/8*N = 0 // - 13
-1/8*N = -13 // : -1/8
N = -13/(-1/8)
N = 104
N = 104
| 4z+6=9z-40 | | 6sin(x)=4 | | 2(q-4)-4=2 | | 13x+4=-6+13x+10 | | (-6y)(-7x^2y)= | | 2n+n=128 | | 72+y+3x=180 | | 43-r=-15 | | -3p-11=-2 | | 10x-17=6x-2 | | 6+8x=5x | | -19x+17y=13 | | 2n+6=16-3n | | 8=(12+5)+4 | | 9.5=3(r+1.6)-8r | | 6=x/4-8 | | 950=-16t^2+1700 | | m-1/4=17/4 | | 3x-y+z=3 | | 2.50x+6=1.75x-8 | | x-8.6=-6.8 | | 0=.5b^2+2.5b-324 | | 8y^2u+3y^2u= | | P=2(96)+2(128) | | .33x+4=1.50x+3 | | (2x-7/5-4x)^1/2 | | (45/13)x^2-15x=0 | | 4(x-7)=10x+9-6x | | 3x+2y+4z=3 | | -27=19-2x | | X=10+-1y | | 0=4x^2+62x+28 |