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+7 = 0
w+4 = 0
w+7 = 0
w+7 = 0
w+7 = 0 // - 7
w = -7
w+4 = 0
w+4 = 0
w+4 = 0 // - 4
w = -4
w in (-oo:-7) U (-7:-4) U (-4:+oo)
(w+6)/(w+4) = (w+5)/(w+7)+1 // - (w+5)/(w+7)+1
(w+6)/(w+4)-((w+5)/(w+7))-1 = 0
(w+6)/(w+4)+(-1*(w+5))/(w+7)-1 = 0
((w+6)*(w+7))/((w+4)*(w+7))+(-1*(w+5)*(w+4))/((w+4)*(w+7))+(-1*(w+4)*(w+7))/((w+4)*(w+7)) = 0
(w+6)*(w+7)-1*(w+5)*(w+4)-1*(w+4)*(w+7) = 0
4*w-w^2-11*w-28+22 = 0
-w^2-7*w-6 = 0
-w^2-7*w-6 = 0
-1*(w^2+7*w+6) = 0
w^2+7*w+6 = 0
DELTA = 7^2-(1*4*6)
DELTA = 25
DELTA > 0
w = (25^(1/2)-7)/(1*2) or w = (-25^(1/2)-7)/(1*2)
w = -1 or w = -6
-1*(w+6)*(w+1) = 0
(-1*(w+6)*(w+1))/((w+4)*(w+7)) = 0
(-1*(w+6)*(w+1))/((w+4)*(w+7)) = 0 // * (w+4)*(w+7)
-1*(w+6)*(w+1) = 0
( w+1 )
w+1 = 0 // - 1
w = -1
( w+6 )
w+6 = 0 // - 6
w = -6
w in { -1, -6 }
| 4[7-(7x-5)]=84x+88 | | -5p-3(5-4p)=5(p-2)-13 | | 16-4=0.03 | | 9x-9.0=81 | | 3x-5=4x+21+z | | 10c+.8=30 | | -5w-3(6z-5w)+4= | | (3/7t^2)-(7/3)=0 | | 3/8f-2=13 | | r+8r=18 | | 5(x+4)=2.5x-5 | | 5x/9-1=0 | | 5x/9=0 | | -2-3/8f=13 | | 1/4-7/8(x)=-4 | | 16-4=0.03x | | 1/4-7/8(x)=4 | | (1/3)x-3=-8 | | 3x+3-5(x+1)=7x+5 | | (1/3)x-3=8 | | 9/10c+1/5c=1/9 | | 0.6(x-5)=x+1 | | y+5x(-1)=6 | | 6.5y-5.1=-10.1+5.5y | | x^3+23x-112=0 | | 4(2-3P)+5=-3(4P-2) | | 6+3(2-13(x-1))=15-18x | | 7/(9x+9)=(7/(x+1))-(7/9) | | 8x-32+5x=-32+13x | | 1/20-1/2=x+3/5 | | y+5/x=3/4 | | y+5/x+3/4 |