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)
3/2.5 = 5/x // - 5/x
3/2.5-(5/x) = 0
3/2.5-5*x^-1 = 0
-5*x^-1 = -1.2 // : -5
x^-1 = 0.24
-1 < 0
1/(x^1) = 0.24 // * x^1
1 = 0.24*x^1 // : 0.24
4.16666667 = x^1
x = 4.16666667
x = 4.16666667
| 4.50(1)+12= | | 84+x+59=x+51 | | X*x^2=72 | | x-5=260 | | 2x/1=5x-20 | | y=4.50x+12 | | x+1.5=350 | | -y-4x+4= | | x+30=700 | | 3x^2+30+75= | | -7/5-1=3 | | -7s+1=-9s+2(s-1) | | 13=3x-3-x+10 | | 20/4=8/x | | 10x-8=400 | | 10x-8/3-4=6x | | -2(5f-2)=-10f+4 | | x+1.2=68 | | 3=2h-3 | | -3x=55-8x | | Y/6-x=-1;x=-9,9 | | -2(18r+10)+18r=-18r-20 | | (a^(1/3)b^(-1/4))^-12 | | x-208=28 | | 15/4=3/g | | -10+12n=-4n+11+16n | | 60000/0.75 | | -40+4x=-36 | | 14k=60 | | x-322=13 | | 5x-8+40=7-x | | 3(8d+3)-19d=9+5d |