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)
5.1/(10-9) = N // - N
5.1/(10-9)-N = 0
5.1-N = 0 // - 5.1
-N = -5.1 // * -1
N = 5.1
N = 5.1
| 3m=2n | | 24.25x-598=1762 | | 4x^2=12x+7 | | 36b-54=6b-24 | | -(2x-4y-4)= | | (2x+3)•(x+5) | | y6=6/7x-12/7 | | 2+3*10=32 | | 2b-3(18)=6(b-4) | | 8(4+2)=48 | | 9x^2-5sinx-1=0 | | x^2+y^2-2x-24=0 | | 5(3y-9)-(9y+6)= | | 2+3*10= | | -6x^3-111x^2+246x=0 | | 0=8x+16 | | 8(4+2)=(8+4)x(8+2) | | 8u+4v-7(8u-6v+5w)= | | x^2+3xy-40y^2=0 | | 2x-(8-x)=3(x+4) | | -x(x+15)=0 | | (y-7)(4y+17)=0 | | (3/7w)-(7/5w)=-(34/175) | | 7(8x-5)+10x= | | x+(3x-5)=44 | | y-9=54 | | X+1/X+41/20 | | 4(2x+5)-9= | | 17=x+(-3) | | 10y-1(4y+8)=-20 | | 5w^2+2=-11 | | -16=3x-12 |