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)
4/18 = 15/x // - 15/x
4/18-(15/x) = 0
4/18-15*x^-1 = 0
-15*x^-1 = -2/9 // : -15
x^-1 = 2/135
-1 < 0
1/(x^1) = 2/135 // * x^1
1 = 2/135*x^1 // : 2/135
135/2 = x^1
x = 135/2
x = 135/2
| 8k+40=16 | | -5/7u=25 | | 8=-d+19 | | 7n=217 | | 8x+16y=-12 | | 2x-3/x-4/6=7/3x | | 2X-6=21+3X | | 5x+4y=-36 | | -4(7x+8)-6x=-32+5x | | 3(x+6)=9x+12 | | 2y=25-3y | | 7/6-5/6= | | -3(2x-11)=-39 | | 5k^3+2k^2-15= | | 9x-3x+21=3x-12+3 | | 5xp=5 | | (8x^6+6y)+(-7x^6-7y)= | | -22=6(x-5)-8x | | w/3=25 | | (3x^2y^4)/(18x^3y^2) | | 4(6x-3)=-12-2x | | x+10b=6a | | 4(6x-3)=-12-2 | | 10x-4y=3 | | 7m-17=-27+9m | | 1.8x+4.5=30 | | 9(n+5)+6(n+6)= | | 3p^2-14p=15 | | 2s-5=23+6s | | -4=-12-x | | 3k+10=-2k-20 | | 3quarts=howmanycups |