3n+12=9

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


Simplifying
3n + 12 = 9

Reorder the terms:
12 + 3n = 9

Solving
12 + 3n = 9

Solving for variable 'n'.

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

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

Combine like terms: 12 + -12 = 0
0 + 3n = 9 + -12
3n = 9 + -12

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

Divide each side by '3'.
n = -1

Simplifying
n = -1

See similar equations:

| 18a^2+33a-105=0 | | Y(5+9)=28 | | 7x=68.833333 | | 121-25x=0 | | -2(1)+9=7 | | 5(3+2v)=5(4+v-1) | | Y^4+9y^3+20y^2=0 | | F(-5)=4(25)+(-30)+8 | | 20x+20=5(2x+18) | | B^2=42+b | | 14v^2-9v+1=0 | | 10+m-4+5=23 | | 3x^2-9x^2+6x= | | 3+x+4x=4.21 | | (3x^(2))*(x^(1/5)) | | -105x+18=-60x-10 | | 13x=-(9-12x)-5 | | 3+2v=4+v-1 | | 1.5+3.25=1+2.25 | | 16p^2+10p+1= | | 1+5k=8+8k+5-k | | 44(12-a)=43 | | 2x-25=5x+30 | | 48=3/4u | | 2y-10=6x+4 | | P=rt | | 3+2x=7-11x | | (-6d+6)(2d-2)= | | 50=10x+b | | 10p-3=2(12+4p) | | U/6=8/7 | | 3x-4(x-2)=15-3(x-2) |

Equations solver categories