7-n-2n=12

Simple and best practice solution for 7-n-2n=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 7-n-2n=12 equation: 


Simplifying
7 + -1n + -2n = 12

Combine like terms: -1n + -2n = -3n
7 + -3n = 12

Solving
7 + -3n = 12

Solving for variable 'n'.

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

Add '-7' to each side of the equation.
7 + -7 + -3n = 12 + -7

Combine like terms: 7 + -7 = 0
0 + -3n = 12 + -7
-3n = 12 + -7

Combine like terms: 12 + -7 = 5
-3n = 5

Divide each side by '-3'.
n = -1.666666667

Simplifying
n = -1.666666667

See similar equations:

| 3(u-12.5)=-3.41 | | 70=(x+4) | | 7y^3-41y^2-6y=0 | | 2x^2+13x-24=0 | | 11x-4=2x-8 | | 5n^2=9n | | -3.6(0.25-r)=0.18 | | 7m=4m+12 | | -2(3-x)=0 | | -3.57=3(a+4.51) | | 30-x=9x | | -2.8=-1(c-0.65) | | 64-5x=22x+16 | | 6x^2-16x=0 | | 0.09x-61=-0.13(x+300) | | 5n+-9=71 | | 3x^2=6x+1 | | 2(x+1.5)=7.6 | | -27-4x=7-8x | | (2x+1)+(x+3)+(x+3)=p | | 4x+20=13x-79 | | 5+8x=61 | | 5-6(a+2)-7+a= | | 9x+89=5x-88 | | (3+6i)(3+6i)= | | Z^2-5z+6=0 | | (8+4i)(8-4i)= | | 8x-4x= | | (6-3i)(7-2i)= | | -2.3g=7.13 | | Q=5g+5w | | 40=-1.6m |

Equations solver categories