21=3*4n+5n

Simple and best practice solution for 21=3*4n+5n 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=3*4n+5n equation: 



21=3*4n+5n

We move all terms to the left:

21-(3*4n+5n)=0

We add all the numbers together, and all the variables

-(+5n+3*4n)+21=0

We get rid of parentheses

-5n-3*4n+21=0

Wy multiply elements

-5n-12n+21=0

We add all the numbers together, and all the variables

-17n+21=0

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

-17n=-21

n=-21/-17

n=1+4/17

See similar equations:

| x-2+1/6=5/6 | | 5(4n-1)-6n-3=90 | | 7b-42=133 | | 6x-3=-3(-2x+1) | | 14-20q=-10-7q-17q | | 29x+1=3^x | | -2x-38=7(X+1) | | x÷-12+63=66 | | 1x+3=5x+11 | | (n+3)(n-7)= | | 7b+42=133 | | 5x-30-8=22 | | -5.1j-7.81=-2.31+14.7j-19.3j | | 15-3x=5+.5x | | 3x+6=115 | | x+49=46 | | -4(x+5)+6=-14 | | 3(x+1=27 | | 4(2x-3)=6x+12+2 | | -17+2y=17y-13y+9 | | y+1.5=-3.4 | | 4-c=-1/3* | | 32​ x−28=46 | | 10x-35=-66 | | 5x+9=2x+7+3x+-15 | | 56-x=18 | | 6g=1+6g | | 4x7+3=5x7-4 | | 11x+2+6x+3=90 | | 3=a-2 | | 18m+50=20m | | 20-9d+5=-19d-15 |

Equations solver categories