3b-21=30

Simple and best practice solution for 3b-21=30 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 3b-21=30 equation: 


Simplifying
3b + -21 = 30

Reorder the terms:
-21 + 3b = 30

Solving
-21 + 3b = 30

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '21' to each side of the equation.
-21 + 21 + 3b = 30 + 21

Combine like terms: -21 + 21 = 0
0 + 3b = 30 + 21
3b = 30 + 21

Combine like terms: 30 + 21 = 51
3b = 51

Divide each side by '3'.
b = 17

Simplifying
b = 17

See similar equations:

| 4x+2+2x=146 | | 31=-8+6(h-2) | | x*x+3x-44=0 | | x+1=2x+17 | | .83333333y=12 | | -5(1-5x)+5(6x+1)=43 | | x(x-9)+18=0 | | x*x+(x+3)*(x+3)=41 | | -2x^2+4=-x^2+x-7 | | .78n-62=.56n-48 | | 6a+7+1a=-18 | | 19=-8r-3r | | x-49=27 | | 2(-x)=(-x)+9 | | 5+4lnx=3 | | 3x+6+3x=54 | | y^2+2xy+12=0 | | 9x-x+5=260 | | X(x+4)=106 | | x(x-7)(2x-10)=0 | | .67y-9=2y+3 | | 3x-13+2x+4=116 | | -66=5x-4(x+15) | | y=-3tanpix | | 1=-8r-3r | | 2x-5+3x=110 | | 1=-r-3r | | ln(2x-5)=ln(6x-4) | | 5+7m+9m=11 | | 3n-5=2n+20 | | x^2-10xy-24y^2= | | x+x+25.12=213.52 |

Equations solver categories