If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( q )
q = 0
q = 0
q = 0
q in (-oo:0) U (0:+oo)
15/q-3 = 5/8 // - 5/8
15/q-(5/8)-3 = 0
15/q-5/8-3 = 0
15*q^-1 = 29/8 // : 15
q^-1 = 29/120
-1 < 0
1/(q^1) = 29/120 // * q^1
1 = 29/120*q^1 // : 29/120
120/29 = q^1
q = 120/29
q = 120/29
| z/10-4=3 | | 10z+2=10+3z | | 2z+10=10+3z | | 2/3-b/7 | | (5a^2/12)(18/a) | | -40+3x=-7x | | 1/3(6x-12)=-36 | | 16u^2*x^4*y^7-12u^9*x^8=equation | | 3.2/100 | | 5/6=7/r | | -2+10x=10+3x | | 4x/4=3/9 | | 4/r=10/7 | | 8/a=10/9 | | 3(22-4)=5(2+2) | | 1/3p-5=10 | | 12/y=5/9 | | 3=z^2+1 | | 8+35x+5=13 | | 8m+2=6m+4 | | 4x+2y+148=360 | | 5x(7x-3)=2+5x | | 9y^2-12y-5=0 | | 4000/5:10000/2x17375(x) | | ln(x)-ln(x+6)=5 | | x/23=-2 | | -4/9= | | -6x-5y=-1 | | x/23=2 | | 3(3x-4)=5(x+4) | | 41-6x=5-10x | | z/9-8=1 |