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)
7/x = 16/2 // - 16/2
7/x-(16/2) = 0
7/x-8 = 0
7*x^-1 = 8 // : 7
x^-1 = 8/7
-1 < 0
1/(x^1) = 8/7 // * x^1
1 = 8/7*x^1 // : 8/7
7/8 = x^1
x = 7/8
x = 7/8
| 3x/4=6x-126 | | -9-3(2s-1)=-13 | | sinx(cots)=1 | | 5a-132=a/9 | | 7n-18+1=10 | | 11x-4=60 | | .3x+80=.5x+120 | | 4/1=11/x | | -2/3m=-4 | | 5x-45=x/2 | | 2(3x-2)-2=3x-10 | | (2sqrt(xy)-y)dx-xdy=0 | | 2x-7/4x^39x=0 | | 5n+4=5n+7 | | -160=-4(-2+5x)-4x | | 9s+3=35 | | 3/2=3.5/x | | -4b-1=3+2b-2b | | 8(4+3)=35 | | 6x-8=8x-4-2x | | y^2-34=70 | | -10-8m=46 | | 9(6x-17)=11(x+5) | | m-2-2+1=7-4m | | -1+1-5n+1=-4-4n | | 20(-7x+4)=19(x-5) | | 3x-2+8x= | | 2x+5=(-1) | | 6c-5=0.5(6+4c) | | 3r+4=q | | (-2)=-1/2(-2)-1 | | 2/3(2x) |