If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( w )
w = 0
w = 0
w = 0
w in (-oo:0) U (0:+oo)
2/w+4 = -7 // + 7
2/w+4+7 = 0
2*w^-1 = -11 // : 2
w^-1 = -11/2
-1 < 0
1/(w^1) = -11/2 // * w^1
1 = -11/2*w^1 // : -11/2
-2/11 = w^1
w = -2/11
w = -2/11
| 5.23-2.34x=3x-1.979 | | -10-y=-6 | | 6v=8+3v | | (-2/3)(9/3) | | 4x^2-7x+18=8x+9 | | 7x^2+24x+28= | | l3m-2/2l=4 | | -67=-8p-3 | | (2x^2-12x+36)+(2y^2+8y+16)=24 | | -2x-9=7x+36 | | (x+6)(x-6)-8=1-4x | | 7a=10-4a | | (x-3)/4=x/2 | | -2(5u-6)+4u=3(u+9) | | -34=4y-6 | | 3=-8+b/-5 | | (4v+7)/15=(6v+2)/10 | | 6x-11y=48 | | 4x^4-16x^3+16x^2=0 | | 7+3(5y-3)=-2(2y-8)+4y | | 4(y+1)=5y | | 3/17x=-9/7 | | 90-12+x=180 | | 6x+11y=48 | | x^2-22x+39=-7x+3 | | 3[1-(-2x-9)]=48x+219 | | -183=-10m-3 | | x-3x+5x-54=180 | | 1/9=(3-y)/4 | | -4(y+2)=2y-6+2(2y+6) | | 7/4=(f-4)/8 | | x/4+2=x/2+1 |