If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
1/x+2 = 0
1*x^-1 = -2 // : 1
x^-1 = -2
-1 < 0
1/(x^1) = -2 // * x^1
1 = -2*x^1 // : -2
-1/2 = x^1
x = -1/2
x = -1/2
| 2h^2-h-15=0 | | 8z+5=20-2z | | 2(y+3)=26 | | 42=4(1+2x) | | (11/(x+8))-4=(-6)/(x-1) | | 2y-x=-8 | | 2x+7=3x/2+5/2 | | 5e^3x-10=2430 | | 4x-5=10x-7 | | 5x+9+3(2x-1)=2x+24 | | 14x-7=8x-12 | | 6(x-4)+44=4(2x+1)+2x | | 2n+10=n+40 | | 15x+15+135=180 | | 12x-4=7x+5 | | 2n+10=0.5+40 | | 2n+10=1.5n+40 | | 7x+7=12x-3 | | 2(3x-4)+5(6x-7)-7x=16(x+15)-10 | | y/5=13 | | 20x+30y=38000 | | 2y-6x=0 | | x+7=12x-5=0 | | 5a^2+10a-11= | | 12-4y+3y=13 | | 12x+17=21x-10 | | X+3x+12x=320 | | 9x+12=12x-15 | | (x/4)+(x/x+6) | | 6+3=1218 | | 0,75t*t-9/2t+6=0 | | 5X-3=15-93 |