If it's not what You are looking for type in the equation solver your own equation and let us solve it.
4^(-8n-9)=13
We move all terms to the left:
4^(-8n-9)-(13)=0
We move all terms containing n to the left, all other terms to the right
4^(-8n-9)=13
| 4d+14=9d-6 | | 10-9x+37x-16x=254-58x-655x | | 3b+15=8b | | -y=72 | | -57=t+18 | | 9y-2=5y | | 29=2πr | | -18-3/4(v)=3 | | 9y-7=6y+-1 | | 4(8x+7)-6(1+4x)+x=4 | | 12x+4=3x+14 | | 4(8x-7)-6(1+4x)+x=4 | | 5u=6-1/u | | -32=2(x-6)-6x | | -22=8x+6 | | -20=8x+6 | | 5x/x=40/5 | | -8y+3(y+3)=-6 | | 10v-2v=40 | | -5w+8(w-3)=-12 | | 9p=8p | | -5(4t-4)+3t=8t-2 | | 5t+16=-5t= | | -4(x-8)+5=37 | | -3=9(5-2x)/5 | | 12x+6x+3=-2x-1 | | x/7x+6=41 | | 3(15/8x-11=7/4+1 | | 9y+12=67+48 | | 3x+7=49* | | 6m+10=3m-41 | | 6x=7x+15 |