3x+x+9=0

Simple and best practice solution for 3x+x+9=0 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+x+9=0 equation: 


Simplifying
3x + x + 9 = 0

Reorder the terms:
9 + 3x + x = 0

Combine like terms: 3x + x = 4x
9 + 4x = 0

Solving
9 + 4x = 0

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 4x = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 4x = 0 + -9
4x = 0 + -9

Combine like terms: 0 + -9 = -9
4x = -9

Divide each side by '4'.
x = -2.25

Simplifying
x = -2.25

See similar equations:

| 5z+6.9=6z | | -6y-11=4y+19 | | -14n+n=-9 | | 6-2(a+2)=8+a | | 72+m*n=0 | | 5x+6=-3+3x+21 | | 2(x+4)+9=17 | | 72+mxn=0 | | 324=15(x+15) | | 3m-7n+1=0 | | 7t-s=-116 | | 17a+31=100 | | 3(x+4)=4x+9 | | 11x+11(x+2)=0 | | 25*b=338 | | 8x-21+6x+14+5x-11+4x-13=360 | | x*1/3*x=10 | | 12*b=338 | | 2(5x+9)=-48+26 | | 6x+6=9x+18 | | -6x+1=13-3x | | x^2+4-4=0 | | 125=26+9x | | -a/6+7=-14 | | 30+126+48+x=360 | | (8x+3)+(4x+2)=17 | | (6x)-(2x)=40 | | 120=2(3.14)(r)(4) | | 9y-4(8)=-30 | | (8x+3)+(4x+2)=41 | | (2x+3)(2x+3)(2x+3)=64 | | 2x+9+3x-8+3x-4+3x-10+2x-7=540 |

Equations solver categories