If it's not what You are looking for type in the equation solver your own equation and let us solve it.
r3=216
We move all terms to the left:
r3-(216)=0
We add all the numbers together, and all the variables
r^3-216=0
We do not support erpression: r^3
| 2-3x=27 | | (x/8)+23–4=36 | | (x÷8)+23–4=36 | | 4=74/v | | (1/6)^x=216 | | x2+12x-35=0 | | (1/6)^x=21 | | 98/x=7 | | -3(3x+15)-(10+x)=34 | | 10x-(4x+8)=52 | | 4(2x-2(=6(3x+2) | | -10(-4+y)=2y | | 6x-2x+5=37 | | x2+4x-10=0 | | (-45+x)/7=-5 | | 2(x-1)^2=9=41 | | 4x-18=2x-34 | | -6=k(0+1)(0-3) | | 25x2=144 | | 4x2-17x+4=0 | | 4x-18=2x-+34 | | 100-5(4+8)=x | | 1/2a=5/12 | | 4x18=2x-34 | | 8=1*y | | 2x2=-128 | | -(x+30)=x | | 7(4x-8)=-26+6x | | (x–π)+2=1 | | -(5x)(x)+9+7x=0 | | 20=y*5 | | 3/2x-14=x-13 |