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)
4/w = -16 // + 16
4/w+16 = 0
4*w^-1 = -16 // : 4
w^-1 = -4
-1 < 0
1/(w^1) = -4 // * w^1
1 = -4*w^1 // : -4
-1/4 = w^1
w = -1/4
w = -1/4
| W+6=22 | | 5=w-7 | | -7/2=-4/7y | | 3y-20=180 | | 2x+6(3)=9(6) | | a-(-2)+3=-2 | | 4=(3+1)(3+1) | | 2=n+(-4) | | 4x+8x=108 | | 2.1-0.06= | | .4(x-3.5)+1.4=.875 | | (5,3),m=1/2 | | 6l+30=72 | | -100=-3/5h | | 9(b-4)-7b=5(3b-z) | | 30y=5 | | x/16=12/90 | | 5a-15=60 | | 4a^2+3a=2 | | 2/3k=-9 | | z^2-4iz=0 | | 7x^2+2=9x | | 14r+24=10r+2r+30 | | (-6x-11)-(-2x+4)= | | 16+t=7 | | (6z/7)-(4z/9)=1 | | 5(-14.5)-3(-54.5)=25 | | 5x+4=5x+-2 | | 8(x-7)=4(6) | | -4w+6w=9-3 | | X+5x+36+2=180 | | 62/3s-2/3=1s/6+4/3 |