21=-3n

Simple and best practice solution for 21=-3n 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=-3n equation:


Simplifying
21 = -3n

Solving
21 = -3n

Solving for variable 'n'.

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

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

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

Add '-21' to each side of the equation.
21 + -21 + 3n = 0 + -21

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

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

Divide each side by '3'.
n = -7

Simplifying
n = -7

See similar equations:

| =4y^2+8v+3 | | 2y+8-2x=0 | | x+1.25x=45 | | 7(x-4)+4=2x+5(-5+x) | | 5=2e^3x-1 | | 7+55x=33x+13 | | -8x+10=-7x-2 | | 3x*x^2=1 | | .66(24t-9)=8t+23 | | 20x+4y-3=0 | | 9x+1=9(x-5) | | 5p-12+2p=7 | | .5(8n-2)=16-30n | | Y=2.75x-15 | | -2/3t=4 | | -9-8x=-2(x-4) | | 2x+10y-1=0 | | 4x^2+x+1= | | 6v^2=3-9v | | -4y+6=-2(4y+11) | | (4x^2+5)-(6x+10)= | | 9(x-6)=2 | | 5m*12= | | x/3+12=5 | | 4(773)-530=x | | Y=bY+d | | 36-(-20)-2(x-3)=0 | | 4(2x-1)=6x-3 | | (a-8)+7=5(a-2)-3a-19 | | 40+.10m=35+.15m | | 4x^2+x+5= | | -5x+7x-14=6 |

Equations solver categories