If it's not what You are looking for type in the equation solver your own equation and let us solve it.
m in (-oo:+oo)
100/20-m = 460 // - 460
100/20-m-460 = 0
-m-455 = 0 // + 455
-m = 455 // * -1
m = -455
m = -455
| 36=.9x | | -2p+8=1+5p | | -8.48=-.2(6.5n-2) | | 31x-1=29x+1 | | (e^8x+6)-4=0 | | -3(1+5r)-5=-(6r-1) | | 2x+6y=128 | | 2p+(p+3)=21 | | 0.3x=2.7 | | F(x)=3x-19 | | 3p-7=3(5p-7)-2(6p-7) | | x+x-10+5(x)=180 | | -8p+4=-(1+7p) | | x+[4+7]=11 | | 11+6n=-5n-n-5 | | 8+5t-8t=20 | | -8+8+(-10)=c | | 148=6x+2(6x-16) | | -16t^2+40t+45=0 | | 3x+5=-5+x | | e+3f=6 | | -.5x+2=4 | | (3x-6)-8=-2 | | x-1.06=.4 | | x+84=3x-32 | | x(x+8)=96 | | 8(2k+2)=-2(6k+6) | | -10+7c=10+9c | | 3(x-4)+6=3(x+10) | | 10/12=x/6 | | x+4(x)+5(x)=180 | | x/12=7/2 |