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)
9/x = 6/50 // - 6/50
9/x-(6/50) = 0
9/x-3/25 = 0
9*x^-1 = 3/25 // : 9
x^-1 = 1/75
-1 < 0
1/(x^1) = 1/75 // * x^1
1 = 1/75*x^1 // : 1/75
75 = x^1
x = 75
x = 75
| a(d)=0.45d+180 | | -x-2=3x-5/4 | | 3t(1.5r)=0 | | 10(s-8)=-178 | | 6(8x)=60 | | 3(-6-6x)+7x=-8(x+3) | | 2x*2+5x=-3 | | 4(t+2)=4 | | 15x-20/3x=3 | | 5+8lnx=4 | | 7-(-15)=0 | | 180+0.45d=a(d) | | 3ln(2x-3)=15 | | 8(1+6x)=-4x-4(5-6x) | | =91.2 | | 15x^2+32x+16=0 | | x+(.15*x)=3.62 | | -x^3+2x^2-7x+14=0 | | -7(2r-3)=3(-7r+7) | | -3x+x+(7x)=0 | | -1+6(4x+2)=7(-3x+8) | | (x-5)*2=36 | | 2x^2-16=30 | | -2(1+6x)-2(3+5x)=2x+6+8-2x | | 5-6y*2=113 | | X+-9=12.42 | | 1/(1/4)=x | | y=8ln(7x) | | Y^2=14y-24 | | 1/(1/4)= | | (4x-3)*2+7=39 | | 25-5x=-10 |