21=2n+13

Simple and best practice solution for 21=2n+13 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 21=2n+13 equation: 



21=2n+13

We move all terms to the left:

21-(2n+13)=0

We get rid of parentheses

-2n-13+21=0

We add all the numbers together, and all the variables

-2n+8=0

We move all terms containing n to the left, all other terms to the right

-2n=-8

n=-8/-2

n=+4

See similar equations:

| Z=2y-3× | | 9y-10=71 | | 23.4=-3x | | Y=2x(x-3)=-5 | | X2+11x+31=3 | | 2x+8=-3.5 | | 7x=9.1 | | 9x÷16=81 | | X-((8-4x)/4)+2=0 | | 3m-25=m-5 | | -3/5-x/4=5/3 | | 7m-58=-37 | | -(5a+9)+a=7 | | 30x+0=22x+80 | | (2y-4)+8y=16 | | 20x^2-7x=6. | | X=-2+4y | | 20x2^2-7x=6. | | 2x+225000=550000000 | | 3x2+10x-25=0 | | 9m-8=3m+4 | | (0.04-x)/x=1.99 | | (9+2x)*3=9+3x | | (10x+5)+(5x-5)=180 | | 5y-2y+y-6=9y+10-6y+13 | | M+2-a=9 | | (9+2x)*3=3+9x | | (5x-1)^2=-49 | | 24p^-12p=24p-12p^ | | 2x-17+2x+7+x=180 | | 6x+5=-6x+137 | | 2x-17+2x+7=180 |

Equations solver categories