7n-21=5n+5

Simple and best practice solution for 7n-21=5n+5 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 7n-21=5n+5 equation:


Simplifying
7n + -21 = 5n + 5

Reorder the terms:
-21 + 7n = 5n + 5

Reorder the terms:
-21 + 7n = 5 + 5n

Solving
-21 + 7n = 5 + 5n

Solving for variable 'n'.

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

Add '-5n' to each side of the equation.
-21 + 7n + -5n = 5 + 5n + -5n

Combine like terms: 7n + -5n = 2n
-21 + 2n = 5 + 5n + -5n

Combine like terms: 5n + -5n = 0
-21 + 2n = 5 + 0
-21 + 2n = 5

Add '21' to each side of the equation.
-21 + 21 + 2n = 5 + 21

Combine like terms: -21 + 21 = 0
0 + 2n = 5 + 21
2n = 5 + 21

Combine like terms: 5 + 21 = 26
2n = 26

Divide each side by '2'.
n = 13

Simplifying
n = 13

See similar equations:

| 6x-12=5x+8 | | x-2(3x-1)=5(x+2)-5 | | 5x+1=56 | | v^2-7v+20=0 | | v^4x^2-16x^2=0 | | 8.2x-4.9x=66 | | 4m-8=6m+10 | | 16x^2+2x=64x^3-45 | | x^3-9x^2=x-9 | | 9x+x^2=-20 | | x^2+11x+27=3 | | 4j^2+6j-4=0 | | 2(n+1)+1=10 | | 6-2=7-4t | | 50-6x=3x+16 | | w(19+6w)=7 | | 37=4x+2(3+4) | | -2(x-7)-2x-14=6 | | w(10+6w)=7 | | X^2+22x-58=0 | | w(19+12w)=21 | | -5(2x+1)=2(3x-4) | | 6x-15y=20 | | 0.5D+5.5E=30.5 | | 5*(x+2)-3*(1-x)=6*(4+x)-7 | | 22b-3(5b+4)=16 | | u+2=2 | | 9-3r=15 | | w^3-7w^2=8w | | 8x-8=9x | | 2v^3-2v^3x^4=0 | | 67.75-a=34.81 |

Equations solver categories