3b-12=9

Simple and best practice solution for 3b-12=9 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-12=9 equation: 


Simplifying
3b + -12 = 9

Reorder the terms:
-12 + 3b = 9

Solving
-12 + 3b = 9

Solving for variable 'b'.

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

Add '12' to each side of the equation.
-12 + 12 + 3b = 9 + 12

Combine like terms: -12 + 12 = 0
0 + 3b = 9 + 12
3b = 9 + 12

Combine like terms: 9 + 12 = 21
3b = 21

Divide each side by '3'.
b = 7

Simplifying
b = 7

See similar equations:

| 2(2x-8)=4(1x-4) | | 10y+12(11y+7y)+-223=a | | 10y+12(11y+7y)+(-220-3)=3a-2a | | 6v=38.4 | | 1.9x-3-1.4=14 | | 5(d-6)+6(d-22)=3 | | 27y-13=311 | | 4(x+4)=21 | | 63x+9y=18 | | 9x-11y=22 | | f(x)=5ln(4x) | | -7(2x-1)+5(3x-2)-3=7-8 | | 55+50=b | | 4ln(x+8)-7lnx= | | 7-3.4=v | | x+5x+90=x | | Q=8b-11c | | P=42w-2c | | 6u+2u=-8+16 | | 4x^3-16x^2+19x-6=0 | | 6y^2-3=46 | | .04x^2-6=-2 | | 3(s+10)=8s | | Y+1.1=3.1 | | 2x+(3x-12)+(4x+9)=180 | | 1.5-b=0.5 | | A*2=5.8 | | T+4.3=9.4 | | 4x+y-z=10 | | A*2.9=8.7 | | 8k^2+68k+120=0 | | 35y^2-34y-21=0 |

Equations solver categories