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 in <0:+oo)
v = (1/3)*x^3.14*x^5*x^5*x^7 // - (1/3)*x^3.14*x^5*x^5*x^7
v-((1/3)*x^3.14*x^5*x^5*x^7) = 0
v+(-1/3)*x^20.14 = 0
-1/3*x^20.14 = -v // : -1/3
x^20.14 = 3*v
x^20 = (3*v)^(1/0.14) // ^ 1/20
abs(x) = 3^0.357142857*v^0.357142857
x = 3^0.357142857*v^0.357142857 or x = -(3^0.357142857*v^0.357142857)
x in { 3^0.357142857*v^0.357142857, -(3^0.357142857*v^0.357142857) }
| 1/5y-2=8 | | 3p+9r-8p-12r= | | 2b(2b+6)+b(8b+6)= | | (u^4v^3+w^2x^4)(u^4v^3-w^2x^4)= | | 8x+13+6y+1=180 | | 3(x-2)+5(x+1)=-2(x+4)+5 | | 8y+13+6x+1=180 | | 8x+20=76 | | 8x+20=77 | | 3(x-2)+5(x+1)=-2(x+1)+5 | | 8x+20=78 | | 8x+20=45 | | -7x-5=-19 | | 7x+42=84 | | 7x+42=85 | | 7x+42=83 | | 3(x-2)+5(x+1)=-2(x+1) | | 7x+42=80 | | 7x+42=79 | | 7x+42=78 | | 7x+42=56 | | 7x+42=45 | | 7x+42=20 | | 7x+42=15 | | 7x+42=6 | | 1x+2y=350 | | 8x+48=6 | | 1/2(2-12)=4 | | 7x+9+8y+13+8y-8+6x-1=360 | | 24x^8-40x^3+64x= | | 8x+25=10 | | 6x+45=10 |