If it's not what You are looking for type in the equation solver your own equation and let us solve it.
3b-b=20
We move all terms to the left:
3b-b-(20)=0
We add all the numbers together, and all the variables
2b-20=0
We move all terms containing b to the left, all other terms to the right
2b=20
b=20/2
b=10
| x-15(-5)=-120 | | 8+2n=9n+8 | | 3x-4-7x+6=4+x+3x+6 | | X+3=x2 | | (x–2)=–1/4(x–8) | | 71=15-(6z-5) | | -4(u-19)=16 | | 4^x-5=121(3^x) | | -3+2,3x=-27 | | 3x+1+2x=-(2x-15) | | 8t+2-3t+12=6t-42+8 | | X-2+7x=4+9x | | 22/5=3/8+h/33.3 | | (X-10)=-6(2-y) | | 4x+2-(x+)=9 | | 47+22=x | | 22/5=3/8+h/1/3 | | 2x-(1+x)=-8 | | x=3(-64)-2×-8+6 | | x=3x+75 | | 2x+4-1(-2)=3x+3-1-(1) | | X(-15x-5)=-120 | | 35=17-(2z-7) | | x-x/3=x+4/4 | | 2x+1=x-x+3-(1-2) | | 2x+1=x–x+3–(1–2) | | 14=2n-4(-n+1) | | -10y-(-3(10y-7)+18=0 | | x-15(5)=-120 | | 2/3x=11/3x-6 | | -10y+18=-3(5y-7+5y | | 6x-(x9)=7 |