If it's not what You are looking for type in the equation solver your own equation and let us solve it.
2b-9=-1
We move all terms to the left:
2b-9-(-1)=0
We add all the numbers together, and all the variables
2b-8=0
We move all terms containing b to the left, all other terms to the right
2b=8
b=8/2
b=4
| x-3/8=4/1 | | 7x/5=-42 | | (28)/(k)=(5.6)/(84) | | 5x/5=(x/10)-(9/2) | | 8x+9=15x+7+3x | | -10-3x=+2 | | 5=h/2-4 | | x/5=x+2/15 | | 25+2x=40-3x | | 8r-2/3=-15 | | y/5+2=y/3+4 | | 45x+7=12 | | v3– -6= 7 | | 6m+12-m=-3 | | 4/8=1/8x-3/4 | | 49=7u-14 | | 7x2+7x=0 | | -2m-4m=2/7 | | 4x+44=90 | | 3y=520 | | 22=2(b-17) | | 11n+2=6-9n | | (x+12)(x-6)=0 | | 8x+3=7x+x | | 6x-4x+3=11 | | z4=512 | | (x+12)(x-12)=0 | | 2x+5)(6x-1)=120 | | 34=7t | | (2x+5)x(6x-1)=120 | | (2x-12)(x-12)=0 | | 5.8g=2=3.8g+6 |