If it's not what You are looking for type in the equation solver your own equation and let us solve it.
f(8)=81(1/3)^7
We move all terms to the left:
f(8)-(81(1/3)^7)=0
We add all the numbers together, and all the variables
f8-(81(+1/3)^7)=0
We add all the numbers together, and all the variables
f^8-(81(+1/3)^7)=0
We multiply all the terms by the denominator
f^8*3)^7)-(81(+1=0
We do not support efpression: f^8
| 8x-12=2x+15 | | 19=4a-9 | | 7-15g=2 | | 5-×y=7 | | 60x+50=120 | | 4+6p=-8p+32 | | (7/4*x)-(5/6)-(1/12*x)=0 | | 13=-y+4 | | -3x+16=8x-17 | | x/2+16=19 | | -(x-1)-8=-18 | | 18x+11=40 | | 0=-6n-2n=16 | | 7=u/3+4 | | 8y+2=74 | | 350(3+x)=4550 | | 15+y=256 | | 12=-2+2w | | 350(3+x)=3500 | | -5x+17=-4x+15 | | -5x=17=-4x+15 | | x/3+5x=6 | | -13=m+7 | | 12=-2=2w | | 3046.10-10x=x | | x(-x+3)=5x+3 | | (1/4)^(3x)=6^(x-2) | | 9x+45=108 | | 7x-11=-4x | | 36-3x=93 | | f/22=21 | | 9x=36+45 |