If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
56*x = 0
56*x = 0
56*x = 0
56*x = 0 // : 56
x = 0
x in (-oo:0) U (0:+oo)
(15*x)/(56*x) = 1/2 // - 1/2
(15*x)/(56*x)-(1/2) = 0
(15*x)/(56*x)-1/2 = 0
-13/56 = 0
x belongs to the empty set
x belongs to the empty set
| 5t-3t=5-3t+15 | | (15t/5)=(2t+3)/6 | | 4x-2+6x-25=113 | | (15n+12+24)/(n+2)=16 | | xy+z=wy+x | | (15c+30)=1/3(102-12c) | | (150/(25))=300/(2(-25)) | | (15/x)=(6/x)+7 | | -17-(-3)=h | | (15/x)-5+7=25/(x-5) | | (15/x)+(9x-7)/(x+2)=9 | | (15/k+5)=4(-3k/k+5) | | 5x-8x=3x+12 | | -x-5=-1 | | (15/2)y-10-7y=-10 | | (15-9y)2/3=14 | | (15-5x)/5=0 | | 12/4 | | (15+g)/3=-9 | | (15)/(5x-5)+(1/5)=(3)/(x-1) | | (14x-9)/(7x+3)=2-4/x | | (14X-7)/-5x=0 | | (14x-65)/6=5x-2 | | 12x^2+27x-12=0 | | (14x-3)/(7x+3)=2-(2/x) | | (14x-3)/(-5x+5)=3 | | (14x+22)/(x+2)=-3x+1 | | (14n-7)/5=7 | | (14/x-5)+(3x+2/x)=0 | | (14/x-5)+(3x+2)/x=0 | | (14/x)x60=20 | | (14/(x-5))+((3x+2)/x)=0 |