If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( i )
3*i+4 = 0
3*i+4 = 0
3*i+4 = 0
3*i+4 = 0 // - 4
3*i = -4 // : 3
i = -4/3
i in (-oo:-4/3) U (-4/3:+oo)
((6*i+2)*(2-(3*i)))/(3*i+4) = 0
((6*i+2)*(2-3*i))/(3*i+4) = 0
( 2-3*i )
2-3*i = 0 // - 2
-3*i = -2 // : -3
i = -2/(-3)
i = 2/3
( 6*i+2 )
6*i+2 = 0 // - 2
6*i = -2 // : 6
i = -2/6
i = -1/3
i in { 2/3, -1/3 }
| 12.2x+5=3.2+23 | | 2*x*x*x-11*x*x+12*x+9=0 | | 3+4x=2y-9 | | -6+8r=7r | | 7+x-15=-21/2 | | 7/9x-5=9 | | -40+z/12=-50 | | -11y=143 | | (v-6)(v+1)= | | g(x)=2x+x^2-24 | | -3(5-15x)=15(3x-2) | | f(x)=5x^2-5x+2 | | 6y+3=39 | | 3x+-21=12 | | f(x)=7x^2-6x+2 | | 12+4x-2x=22-x | | 3x+2x-x=30 | | 40-(3X+13)=3(X+2)+X | | 2/3(4x+9)=0 | | 0.43x+3-x+3=2 | | 5/2x=2/9 | | -3x-4.8=-x-9.6 | | -4x+12=48 | | 6(5+n)-2n= | | 3/6+3/4 | | 6x+13/4=0 | | 90=10(4X+1) | | 6/w=3/7 | | 2.3t-7.6=18.4-0.6t | | 5(x-4)=60/12 | | -8-9y=-38 | | 8(-13)9y=-50 |