If it's not what You are looking for type in the equation solver your own equation and let us solve it.
a=0.2a^150
We move all terms to the left:
a-(0.2a^150)=0
We do not support eapression: a^150
| -7x-6=1-6x | | 4x-15+5x+11+6x+19+5×+5=360 | | 4x+5=-6x+65 | | 2x−1=5 | | x2−1=5 | | 9x-(2x-13)=43 | | x/2−1=5 | | 3x+3=-4x+38 | | Y=0.10x+15 | | 0.35x+0.6x=0.1x+1 | | (4x+12)/8=2x-3 | | 8n^2+9n+1=0 | | 8(x-2)-1=5x+3(-4+x) | | 6x-10+6x-2=132 | | 116+2y=180 | | 0.67=3n-n | | 14x+5=103 | | 3x+10=-6x+55 | | 1-4x=4x+81 | | 11-4x=-17 | | 21=2/3v | | -6=-4+k/3=k=-6 | | .75w=27 | | 8.4o-6.8=+14.2+6.3o | | 8(p-3)=4p;6 | | 18x+5+25=24x | | 7f-23=180 | | 4(5x7)=20x-28 | | -7+5x+39=4+9x | | 4x-11=-83 | | 8.4o-6.8=+4.2+6.3o | | 9-3x=19-x |