2n+6=21-n

Simple and best practice solution for 2n+6=21-n 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 2n+6=21-n equation:


Simplifying
2n + 6 = 21 + -1n

Reorder the terms:
6 + 2n = 21 + -1n

Solving
6 + 2n = 21 + -1n

Solving for variable 'n'.

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

Add 'n' to each side of the equation.
6 + 2n + n = 21 + -1n + n

Combine like terms: 2n + n = 3n
6 + 3n = 21 + -1n + n

Combine like terms: -1n + n = 0
6 + 3n = 21 + 0
6 + 3n = 21

Add '-6' to each side of the equation.
6 + -6 + 3n = 21 + -6

Combine like terms: 6 + -6 = 0
0 + 3n = 21 + -6
3n = 21 + -6

Combine like terms: 21 + -6 = 15
3n = 15

Divide each side by '3'.
n = 5

Simplifying
n = 5

See similar equations:

| 15-3n=25+n | | -2b+6a=24 | | 10-3n=2n+5 | | -3+4x-x-9x-5x+7= | | 2n-15=7 | | 2x^2-3x-a=0 | | 9k-(4+k)=-(3k+4) | | C=4.5+0.5 | | 7x-6x+4x-9x-1= | | x(2)+kx+(k-1)=0 | | (xy-x^2)dy-y^2dx=0 | | 2x-7x-9x-5+2x+9= | | x=.221y-8 | | 60=5x+6x^3 | | 2x-3x+4x-1+6x-5= | | cosx=-45 | | 5x-27x-32x-x+9x= | | 4x-54x-45x+9x-x= | | 0.3*20= | | 0.6*0.5= | | -(5y+2)-(-4-8)=1 | | -6ac+14ac= | | Z^4-(4+2i)z+8i=0 | | 60=5x+2x^3 | | -x-32x-8x+17x+4x= | | 3/4t-4=8 | | Z^2+(2+3i)z+5-i=0 | | h(t)=-16t^2+200t+4 | | (1-4x)+1-(-2x)+(-9)=0 | | 7/15=-y/5 | | X-2+(-3)=0 | | x=ay+bln(y) |

Equations solver categories