3x+9=-12x

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


Simplifying
3x + 9 = -12x

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

Solving
9 + 3x = -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 = -12x + 12x

Combine like terms: 3x + 12x = 15x
9 + 15x = -12x + 12x

Combine like terms: -12x + 12x = 0
9 + 15x = 0

Add '-9' to each side of the equation.
9 + -9 + 15x = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 15x = 0 + -9
15x = 0 + -9

Combine like terms: 0 + -9 = -9
15x = -9

Divide each side by '15'.
x = -0.6

Simplifying
x = -0.6

See similar equations:

| d^2+21d+38=0 | | -3n-1=14 | | k^2+14k+33=0 | | -y+8=2 | | -7x-2=-8x+4 | | -5-16=19 | | w^2+24w+23=0 | | y^5/y^2 | | 2+7i/1+6i | | 9y=3220 | | 4+17s-3=7s+136-5s | | 7i/2-i | | 8+4.50h=10+2.50 | | G(x)=3x^2-6x+9 | | g(x)=2x^2-6x+8 | | (-3,2)m=3/2 | | x+(5x-18)=90 | | -1/2t=1/3t-14 | | 12x=15x | | 3x+112=6x-40 | | -5/-5 | | F(x)=x^2+6x-3 | | 96/12 | | x+(x+14)=90 | | x^4-3x^2+12=0 | | 9x+164=4x | | x+(3x+12)=90 | | w+5=7 | | 6k=42 | | 1+a=1 | | w+7=12 | | -8+w=-4 |

Equations solver categories