If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
x*(((2/5)*x^5)/9) = 3 // - 3
x*(((2/5)*x^5)/9)-3 = 0
2/45*x^6 = 3 // : 2/45
x^6 = 135/2
x^6 = 135/2 // ^ 1/6
abs(x) = (135/2)^(1/6)
x = (135/2)^(1/6) or x = -(135/2)^(1/6)
x in { (135/2)^(1/6), -(135/2)^(1/6) }
| 7x+4x+2+6=4x+3+6x | | 3z+1=0,5(6-4z) | | Y-1=5y-25 | | y=2.5x+2 | | 3/2-1/4 | | 3-3.7b=10.3b+20 | | y=2.5x+b | | -6(3b+4)+(19b-2)=0 | | 4x+8=x-19 | | 2x*(3-x)-4*(x+2)=3x*(2-3x)+5+7x^2-12 | | X(.138)+x=10000 | | -3n+11=12 | | y=3/5x | | 6y+3=5y-5 | | 4b-5=3b-15 | | 19+-14=68 | | 3/5+2/3 | | 10+2/13=8 | | -3-4y= | | .02(X-3)-.1=.4(.8X-1) | | (-6y-5)(5+3)= | | 2y^2-3xy-2x^2=0 | | 4a-8=2a+12 | | 63=13y-6y | | 9(x+9)=8+9x | | 9+3*5*5= | | 3x+y+z=7 | | -(-2+5)-(2+5(-2))+8(-2)=3(-2)-5 | | -5x-5/2=35/2 | | ln(x-5)-ln(5x-21)=ln(1/x) | | 9x+5=4x-10 | | -7/17x=-9 |