If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3^b=243
We move all terms to the left:
3^b-(243)=0
We move all terms containing b to the left, all other terms to the right
3^b=243
b=243/1
b=243
| 1-6b=-4-5b | | -8(y+3)=32 | | -3(-7u+2)-3u=2(u-6)-8 | | 0.99s+10=0.89s+10 | | 6t-5=-41 | | 4/5x+44=12 | | 6y-14=2y-50 | | 18x-18=7(3x+2) | | 2(40-x)=80-2x | | 6(5m-6)-4m=-192 | | 3/5-(2m-10)=2/3m+10 | | 7(5a-4)-1=14=18a | | 4+8h=3h+5-h | | 8x-4x+3(x+2)=18 | | 15-9(2x+3)=-16+40 | | X-4=6x=26 | | 4.7+10m=8.54 | | 2=w-18 | | T(x)=350x+2100 | | |3x|=1.11 | | -15=-3m-36 | | 3(7-4)=7z+4 | | 5(5+3)=4(8+x) | | 3x+6/2=-x-2/4 | | -4(2n+9)-3n=-8(4n-6) | | p-142/7=6 | | 2x+8=(x=4) | | -2x-7(-x*4)=90 | | -4(15)=o | | 5(m+5)=m+5 | | 5d-12=9d+23+d | | 2x(5+4)-x=119 |