If it's not what You are looking for type in the equation solver your own equation and let us solve it.
225-81b=0
We move all terms containing b to the left, all other terms to the right
-81b=-225
b=-225/-81
b=2+7/9
| -3x+30x-33291=209736 | | 912+612u=25 | | 0=2x+5-84 | | -1/2y+6=2 | | 180=9x(9+x) | | (5x+34)^(1/3)=4 | | 19-r=29 | | Y/4+1/3=6y | | 5=x3 | | ^6x-21)= | | 8.95+1.50r=26.96 | | m-8=24 | | 4/3*x+4=1/5 | | -37=n+-19 | | 4/3(x)+4=1/5 | | -5x-6533=2468-6x | | -5x+6533=2468-6x | | (4/3)x+4=1/5 | | 64=4•4^4x | | 4x^2+7x+1=3 | | -5x+4419=4505-6x | | 5(9-x+8=16+2(2x-4) | | -5x+4419=45005-6x | | 4/3x+4=1/5 | | 11x+250=-40 | | -5x+-4419=45005-6x | | -5x+-4582=45005-6x | | 64=4•44x | | 2.1x0.6=17.4 | | 3(3n+4)=7(6n+5)+2 | | -5x+-4582=4419-6x | | 9w^2+25w=0 |