If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2^n=250
We move all terms to the left:
2^n-(250)=0
We move all terms containing n to the left, all other terms to the right
2^n=250
n=250/1
n=250
| X-9+5x+3=180 | | (w)(w+15)=225 | | -6(w+6)=6w+24 | | 2(t+2)=3t+9 | | 6y-36=-2(y-6) | | 7.5a-10=-32.5 | | -4(u+4)=-7u-34 | | 4x-9=-23 | | 3x=137 | | w(w+15)=225 | | .2x=66 | | (x+45)+60=90 | | 4x-4+68=-4x | | 10h+7=7 | | 5(3x-4)=45 | | m/4+3=7 | | x-0.15x=85 | | n/3-5=-2 | | (d+17)/2=5.333 | | 4*x*x+15-16*x=0 | | 180-(4x+50)=2x+10 | | 11x-4=5x+6 | | 7x/2+x/4+x/8=11 | | 2x+12-2x=12x-2 | | (w+3)/4=6 | | 8x+56=6x+20 | | x^2-2x+170=484 | | 5(10x-2)+3x=-25 | | 42n-3=16 | | 20x/100=30 | | 1000/x=900-120x+4x^2 | | x/9=1/7(288-x) |