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)
24/56 = 12/x // - 12/x
24/56-(12/x) = 0
24/56-12*x^-1 = 0
-12*x^-1 = -3/7 // : -12
x^-1 = 1/28
-1 < 0
1/(x^1) = 1/28 // * x^1
1 = 1/28*x^1 // : 1/28
28 = x^1
x = 28
x = 28
| 7(8x+3)+3(7x-3)=12 | | 34-14+x=78 | | -7(5x-2r)=7(1-4r) | | 6n-5=3n+12 | | 5x+3(x-5)=2x-15 | | x-2y+z=-9 | | 2x+70=110 | | -x-162=81-10x | | -cd^2(3d+2c^2d-4c)= | | -17=3+5u | | 25u^2-10u+1=0 | | 17y+9=x | | 22-x+35=-25 | | W(squared)-8w=0 | | 6p-3=7+3p | | 13n+2n-10n+n-5n=7 | | (-1/4)(5.3x)(-4)(y)(-1) | | 2x/150x^5y | | -4x-168=-12x+48 | | 10=40x | | n=0.733(8)+8.398 | | ln(2x-1)-ln(x+1)=0 | | 3x*4x=180 | | n=0.733(18)+8.398 | | 8r-4=5t+8 | | 7x-3=6(x-2) | | y=-2x^2-10x+5 | | 3r-3r+2r=6 | | 9x+3+9x+3+9x+3=180 | | -9v+v= | | n=0.733(1)+8.398 | | 89+x+62=94 |