If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( y )
y = 0
y = 0
y = 0
y in (-oo:0) U (0:+oo)
16/y = 13 // - 13
16/y-13 = 0
16*y^-1 = 13 // : 16
y^-1 = 13/16
-1 < 0
1/(y^1) = 13/16 // * y^1
1 = 13/16*y^1 // : 13/16
16/13 = y^1
y = 16/13
y = 16/13
| x-(-7x)=x-7 | | -x+8=32-4x | | x-2-5=x/5-2 | | 200(1+0.10)2= | | (3x)/8=6/x | | 4x^2-16x-128=0 | | 0.07c=56 | | 2.5n+8=38 | | An=5-2n | | (1+0.10)2= | | 4p^2+12p+20=0 | | 4x-24=62+2x | | f(x)=-0.3*x^2+0.3*x+10 | | -3x+2=2+4x | | 4c^2+4c-48=0 | | 7/8m=9/10 | | 5q^2+20q+30=0 | | 4(3n+2)=9(6n+9)+5 | | 15=-r/4 | | 7x-9=-7x+159 | | c^2-12c+20=0 | | 10x-5=-2(3-6x) | | .06x+.1(2x-42000)=42160 | | (4b-6)=(2b+11) | | .06x+.1(x-42000)=42160 | | a^2-16a+60=0 | | 7y+3(y-4)=5(y+1)-3 | | sin(x)+tan(x)*cos(x)= | | 3x^2=5-6x | | b^2-13b+12=0 | | 10x-5=-2(-3-6x) | | 5=8.5k |