If it's not what You are looking for type in the equation solver your own equation and let us solve it.
20-b=9
We move all terms to the left:
20-b-(9)=0
We add all the numbers together, and all the variables
-1b+11=0
We move all terms containing b to the left, all other terms to the right
-b=-11
b=-11/-1
b=+11
| 7(c+1)=7 | | w/13+3=3 | | w13+3=3 | | -5x+(4)=15 | | 2x+4=2x-4 | | -6.26x+262.5=250 | | 3b5+15b4−18b7= | | 2x+4=2x-2(x+2) | | 3/2x-11+x=4x-1 | | 2+x/100+x=0.3 | | -15=-2x | | 8(1+4k)-4=-220 | | c/6+4=20 | | 9d=11d | | 5(n1/10)=1/2 | | 8/9x=18/9 | | c6+4=20 | | 15+2x=5-3x | | 2x²+16x+76=0 | | 5(x-6)=5x-7 | | y/4+9=23 | | 0.75(8+e)=2−1.25e0.75(8+e)=2−1.25e | | 2x-8+6x/3=4 | | -4·-6=x | | 6x+291=381 | | 6x−4=68 | | -2(x-6)=7=35 | | 11+3x-7=6x+5=-3x | | 54=-7s-12 | | -3(x-4)=2(x-9) | | 8-3j=74 | | 1/4(x+2)=-5 |