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)
2/x = 10/50 // - 10/50
2/x-(10/50) = 0
2/x-1/5 = 0
2*x^-1 = 1/5 // : 2
x^-1 = 1/10
-1 < 0
1/(x^1) = 1/10 // * x^1
1 = 1/10*x^1 // : 1/10
10 = x^1
x = 10
x = 10
| 7z-1+13z+1=90 | | 2(2w-3)=5w-2(w+5) | | c/5-3=3 | | 2y-(4y+7)=-11 | | x+x+1=100 | | f+11=-27 | | -2(x+3)=-3x+9 | | x+3x+2x= | | -5a+6+6a=-2a+9 | | 4(x+2)+10x-5=-27 | | 7+4x=x+10 | | (x-9)/6=7 | | 1y+4=0 | | 7(z-3)+8z-4= | | 4w-2-2w=-38 | | 0=320x-32x^2 | | y+1/2=9 | | 4n-1=3n+4 | | 5(3x)=24 | | 4xsquared=2x | | 9(t-5)+3t=4(3t+5)-13 | | y=4x+b | | -2xy+3x+4-4xy-2= | | 17.50+6.00(x-4)=59.50 | | x/15-x=5/20 | | Y=1/3*3.5*21/3 | | 7+4x=4(x-10) | | 2x+16=90 | | 42/294 | | 24f=p | | (6x-6)=90 | | X-9x-7=0 |