3n+3+3n=21

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


Simplifying
3n + 3 + 3n = 21

Reorder the terms:
3 + 3n + 3n = 21

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

Solving
3 + 6n = 21

Solving for variable 'n'.

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

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

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

Combine like terms: 21 + -3 = 18
6n = 18

Divide each side by '6'.
n = 3

Simplifying
n = 3

See similar equations:

| -9x-13-=-103 | | cosx-1=-cosx | | log(x)=log(2x+1)-log(x-2) | | 11(10n+8)=-12(-2-3n)-10 | | 179=-v+37 | | 4y=25-2x | | 9c-11-5c=25 | | 153=242-v | | -91-10x=5x+179 | | (6x+7)+(2x-5)=180 | | 6b-3(1+11b)=12b+11(-2b-8) | | z^3-(2+4i)z^2-3(1-3i)z+14-2i=0 | | x-2x+5x+2x=24+28 | | -9-5x=36 | | 1+6n-3n=13 | | y=7/3x-1 | | 6x+28=45 | | 3x-5/3=12 | | 10=-2c+2 | | 6m+m=-15 | | 3d+d-8-17-2d= | | 28x=33 | | 6/8=40/x | | (3x+6)(x+6)= | | 39/13 | | 1+5n=6n+5 | | -54+9x=-2x+100 | | px^2+(2p+1)x+p=0 | | lx+2l=10 | | 3-2p=6p-13 | | 6b-3(1+11b)=12b+11(-2-3n)-10 | | 3d+d-8-17=2d |

Equations solver categories