9+n=21

Simple and best practice solution for 9+n=21 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 9+n=21 equation: 


Simplifying
9 + n = 21

Solving
9 + n = 21

Solving for variable 'n'.

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

Add '-9' to each side of the equation.
9 + -9 + n = 21 + -9

Combine like terms: 9 + -9 = 0
0 + n = 21 + -9
n = 21 + -9

Combine like terms: 21 + -9 = 12
n = 12

Simplifying
n = 12

See similar equations:

| (2g^4-3g+9)=(-g^3+12) | | 1=4.5-2p+3.3333p | | -43+4x+x=67 | | 21-[10-5]= | | (-4-3n)= | | -7y=21(-1.3)-28 | | -6x^2+8x-3=0 | | n=-18+21 | | 2y-12=64 | | -4x-33+7x=51 | | 24t+3t= | | 15x^2-18x-34=0 | | 3n^2-10n=25 | | 2x+4-3X-2=1 | | P-15.5=2.5 | | 6x-67-x=38 | | 5x-(X-2)=2x-(5x-1) | | 12x+3=9x+6 | | 2x+2+4x+12=180 | | (7x+12)=(63) | | 2p^2+5=p | | 11x-60-7x=56 | | (6x-30)=(60) | | F=(3xy^3)(-2y) | | -7(n-3)-2=-(1-3n) | | c-4.5=7.1 | | -10x-27+12x=27 | | (10x-40)=(50) | | 3x(x-2)-(x-6)=23(x-3) | | a-6=110 | | -148+x-11x=42 | | u^2-u-56= |

Equations solver categories