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)
-(X/(-X))-1 = 0
1-1 = 0
0 = 0
X należy do R
X in (-oo:0) U (0:+oo)
| -6=5x-22/3 | | -1=b^5+2 | | 4x^3+21x^2+36x-20x=-1.5 | | -3(x-2)=-2(x+3) | | 3x+-14=8x+35 | | T/27=5/9 | | 3(x-4)=2(x+5)+x | | 3v-v-v=7 | | 79x-1/3=2 | | z-20=-14 | | 3x-12-x+4=0 | | 48.1=180-x-22 | | 3x^2+4y^2+18-3-3=0 | | 2a-3a-5+1=10 | | 10q+6q-9q+3=17 | | 4y+3x+7=0 | | -8(w+7)=9w-22 | | 3/8=t/32 | | 9x+24=2x+10 | | 3/8=t/12 | | 8x-3y=-20 | | 15x+-9=8 | | 0.3x-2.8=3.2-0.2x | | 3/8=t/ | | 6v=10+4v | | 2x+4*x-8=4 | | -9y-25=8(y-1) | | 14s-12s+1=19 | | -2(X+6)=-24 | | 46 = s5+ 39 | | y=35x+40 | | -4(u-6)=-9u-16 |