If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( i )
1-(2*i) = 0
1-(2*i) = 0
1-(2*i) = 0
1-2*i = 0
1-2*i = 0 // - 1
-2*i = -1 // : -2
i = -1/(-2)
i = 1/2
i in (-oo:1/2) U (1/2:+oo)
(4*i)/(1-(2*i)) = 0
(4*i)/(1-2*i) = 0
4*i = 0 // : 4
i = 0
i = 0
| 7t+28=-35 | | 3b+a+10=180 | | 153+157=n | | -4(-1.5)+6=12 | | 29.99+.40m=40.79 | | 6(b)=36 | | 3x^2=-6x-3 | | x-.75= | | -192=-8(3-3k) | | a+b+10=120 | | 8x-2y=18whatisy | | 4(x-2)=3(1.5+3x) | | 2y+3w=x | | -4d=6 | | A/3-5=5b | | -14v+10+8v=-104 | | -7+15s+6q-2s-2q+19= | | 4ln(x^(2/4))+ln(3x) | | -96=-6(7n-5) | | x/5+12=3x | | -(7-4x)a=9 | | 4(b)=12 | | 3k+5=-4+6k | | 28+6x=-5(-7x+6) | | 8+5a=-(14-a) | | 96=8(v+6) | | 6n-7=6(7n+6)-7 | | 5/6(2g+1)-g | | (W+1)-5=-2w | | 15x+3*(5-3x)=97 | | 1=-15+(1-1)(-3) | | .37m+.23=1.29 |