If it's not what You are looking for type in the equation solver your own equation and let us solve it.
81^3x=27
We move all terms to the left:
81^3x-(27)=0
We move all terms containing x to the left, all other terms to the right
81^3x=27
x=27/1
x=27
| -0.37+2r=0.63+2.1r | | 12x-42=I8 | | 5-6x=x+75 | | -10m+10=-5m-4-7m | | 21=u+9 | | 10x+11x+12x=31,050 | | -3s-7=-7+7s | | -43=-x+7x+5 | | y+(47/y)=97 | | 7j=120 | | -3-10+6x=-7 | | ‐(5k – 3) = 15 + 3k | | y-(47/y)=97 | | 1.8/13.2=n | | -7-6-9n=3-5n | | m/4+2/3=7/3 | | 42=2x+2x-2 | | -2+6+7x=6 | | 2^3x-3=64 | | 45z-35=75 | | 25-3x=14+8 | | 75(x-3)=90 | | 3q-10+10=4q-7 | | -5+9y=31 | | 32=(x-2x+8 | | 9g-8=9-8g | | 10+6p=4p | | 5x-19=2x+517 | | 6n=-7+5n | | 3x-2.5x^2=-1 | | 24=3x* | | -3+3v=+18 |