3x+9=2x-12

Simple and best practice solution for 3x+9=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 3x+9=2x-12 equation:


Simplifying
3x + 9 = 2x + -12

Reorder the terms:
9 + 3x = 2x + -12

Reorder the terms:
9 + 3x = -12 + 2x

Solving
9 + 3x = -12 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
9 + 3x + -2x = -12 + 2x + -2x

Combine like terms: 3x + -2x = 1x
9 + 1x = -12 + 2x + -2x

Combine like terms: 2x + -2x = 0
9 + 1x = -12 + 0
9 + 1x = -12

Add '-9' to each side of the equation.
9 + -9 + 1x = -12 + -9

Combine like terms: 9 + -9 = 0
0 + 1x = -12 + -9
1x = -12 + -9

Combine like terms: -12 + -9 = -21
1x = -21

Divide each side by '1'.
x = -21

Simplifying
x = -21

See similar equations:

| -3.5-4f=10-2.5f | | 13=[n+3] | | X^4-9x^2-162=0 | | x-16=-19.3 | | xy^3-9xy=0 | | x^2-12x-40=0 | | m+2m-5m-4= | | 2x+35=5x-22 | | 4.3y-6=8+2.3y | | x+9=6.6 | | 7y-15x=22 | | x=2+-0.5y | | x=2+-05y | | 4x+13=-19 | | 9x-5x=15 | | 4a+7=10+a | | 5m-3=6m+6m | | 2(3)-2(4)+7=0 | | x+4=5.8 | | 6x+6=-18 | | 3(2t-4)+2t=24-t | | 0.4-0.2(3-x)=1.8 | | 4a^2-8a=0 | | z^2+7z=0 | | 3+5x-1=9x+11-7x | | 2(n+6)=80 | | R^2+10r+24= | | -3-6k^2=-489 | | x-5=0.5 | | -x+12=-4+x | | (6x+3y)=14 | | 2x^2-3x-20=0 |

Equations solver categories