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)
11/x+5/x = 4 // - 4
11/x+5/x-4 = 0
16*x^-1 = 4 // : 16
x^-1 = 1/4
-1 < 0
1/(x^1) = 1/4 // * x^1
1 = 1/4*x^1 // : 1/4
4 = x^1
x = 4
x = 4
| 6(5x-5)+3(16-3x)-4(5x+1)=-1 | | 2(3x-5)-8=8 | | 11d+5f-21d+5-8= | | -2(1-7r)=-86 | | 10(-6+x)=-10 | | 1/2(20)(28) | | 5x+25=5x+9 | | 2(3m-5)=-28 | | 0.3x+1.7=1.7 | | x+0.2x=7.2 | | 3x+7=23-2x | | 0.25x=2 | | 3mn+4m-2mn= | | 8r-5r+4=6r-r | | 50+40=200+4x | | 11q+5p-9q+7p= | | -(5y+4)-(-4y-6)=-2 | | 4y-30+2y=18 | | 2(b+3)-(8+b)=3 | | -2n=2n | | 2x+7x-6x+8= | | (4y+5)-(3+3y)=11 | | 3(2x+1)=2-(2x-3) | | 2x^2+kx-20=0 | | a-3b+5c+4a= | | (3x/7)-(2x/9)=1 | | 11b+9=4b+30 | | -12720+20x+20x=-6000 | | y^2=5y-4 | | (3a-b)+2a= | | 5(x+2)=-3(4-x) | | 12c+4c=0 |