12+9=x+2x+12

Simple and best practice solution for 12+9=x+2x+12 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 12+9=x+2x+12 equation:


Simplifying
12 + 9 = x + 2x + 12

Combine like terms: 12 + 9 = 21
21 = x + 2x + 12

Reorder the terms:
21 = 12 + x + 2x

Combine like terms: x + 2x = 3x
21 = 12 + 3x

Solving
21 = 12 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
21 + -3x = 12 + 3x + -3x

Combine like terms: 3x + -3x = 0
21 + -3x = 12 + 0
21 + -3x = 12

Add '-21' to each side of the equation.
21 + -21 + -3x = 12 + -21

Combine like terms: 21 + -21 = 0
0 + -3x = 12 + -21
-3x = 12 + -21

Combine like terms: 12 + -21 = -9
-3x = -9

Divide each side by '-3'.
x = 3

Simplifying
x = 3

See similar equations:

| 14x-10=18+9x | | 17x-45+3(3-3x)=(2x-7)-3(3x-7) | | 3+32=3x+8 | | 5(4+3x)=140 | | e*x=6.3 | | n-1+4=-3 | | -4(3+5x)=8 | | 3x^2-44=4 | | 18-4v=14 | | t/4-6=11 | | 6x-3=-3x+96 | | 30x^6=5x^4 | | 7x-3x=16+2x | | 2+5x=7x-8 | | 4x-y^2=7 | | 7x-3x=16+2 | | -5p-4p=7p | | -3r+5+2-14=1-r+4 | | n+5-6n=-10 | | 8m-5=69 | | 10+3x+2x(x-3)=29 | | 26=v | | -16+3n=-3n+2n | | 10+3x+2x(x-3)=293 | | -n+4n=18 | | 10/3a=16 | | -3a+6=-27 | | 2xsquared+15x=8 | | -5sqrt(x+1)+9=-3 | | -3=3r-3-r | | X^3-8x^2+2x-16=0 | | 12-(x+6)=6x-8 |

Equations solver categories