3x-9=12x+9

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


Simplifying
3x + -9 = 12x + 9

Reorder the terms:
-9 + 3x = 12x + 9

Reorder the terms:
-9 + 3x = 9 + 12x

Solving
-9 + 3x = 9 + 12x

Solving for variable 'x'.

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

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

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

Combine like terms: 12x + -12x = 0
-9 + -9x = 9 + 0
-9 + -9x = 9

Add '9' to each side of the equation.
-9 + 9 + -9x = 9 + 9

Combine like terms: -9 + 9 = 0
0 + -9x = 9 + 9
-9x = 9 + 9

Combine like terms: 9 + 9 = 18
-9x = 18

Divide each side by '-9'.
x = -2

Simplifying
x = -2

See similar equations:

| 5(5n-3)+2=-113 | | -107+4x=62-9x | | 88=-4(4n+2) | | x^2+8=3x+18 | | Log(x+1)=100 | | 3(a+7)=2(a-6) | | 6a-2=-2 | | 3x-2(x+4)=2x-6 | | 3(y-7)-6=-6(-4y+2)-3y | | -19+2x=5x+20 | | -3x+1.3=-4x+.07 | | A-5/10=2a-2/5 | | 266=14x | | 9x+5=9x-4 | | 1/4=32^2x-1 | | X-8=2x+15 | | 15-b/2=-3 | | 8x+7=2x-1 | | 4x+4y+9x-2y+3y= | | 4m+2=-12+6m | | 2x^2+8x+24=0 | | h=-16t^2+56t+3 | | 1/3x-3=-3 | | 8x-x^4=0 | | 85m=120+45m | | 2x-5(x-5)=-9+4x+20 | | f(-12)=12-10 | | -5(x+5)-6x=-91 | | d=1/2jp | | -2z+3+72=-12 | | X-84=12x+70 | | 2w*m+q=k |

Equations solver categories