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)
8/3 = x^15 // - x^15
8/3-x^15 = 0
-1*x^15 = -8/3 // : -1
x^15 = 8/3
x^15 = 8/3 // ^ 1/15
x = (8/3)^(1/15)
x = (8/3)^(1/15)
| 4*(2x*1)=20 | | 11x+20=y | | 12k^2-11k+2=0 | | 1/3z+1/6=5/1/6 | | 2x+16=6x+36 | | 89r=3916 | | 3x+3y=7x-5 | | v^4y^2-81y^2= | | 25+5m=100 | | -x-6=-2x+1 | | 5x+22=3x+20 | | 16t^2+9=5 | | 4u-7=3(3-u)-2 | | 24-x=6-4x | | 5x+3z=yforx | | 3u^3-3u^3y^4= | | 2y+3=3y+31-5y | | x/3-8=9 | | 16m^4=25m^2-9 | | x^2-21x+117=0 | | x^2+3x+2=12 | | 12a=-36 | | w+3w+w+3w=90 | | -5(x+3)=6(x+4) | | 3v^2y^4-48v^2= | | 2x(3w+w)=90 | | 12x-8=6x+10 | | 5(3w+4)+2w=8(w+8)-17 | | -2x-2=-5x+19 | | -3b+1=7 | | 11p+11+5p=45 | | -2x+1=-x+4 |