-6n+21=12n-15n

Simple and best practice solution for -6n+21=12n-15n 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 -6n+21=12n-15n equation:


Simplifying
-6n + 21 = 12n + -15n

Reorder the terms:
21 + -6n = 12n + -15n

Combine like terms: 12n + -15n = -3n
21 + -6n = -3n

Solving
21 + -6n = -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 + -6n + 3n = -3n + 3n

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

| 12=vw+z | | -17=n-11 | | -1/3(8x-12)=5x-2 | | -2x^3(5x^2-3x-7)= | | 230x+x=1265 | | d-36=23 | | 2x-4-90= | | -14=n-19 | | 24a+-22= | | 2xy-5=x+y | | x+77.8=19001 | | f(x)=x^3(x+5) | | y=-5-4-17 | | 2-9=27-11p-13p | | X-4+52=109 | | 4x-7-90= | | ln(5x*x)=7 | | 6k=96 | | 13(n+4+7m)= | | 4x+36-5=19 | | 28-22x=11.6x-54.8 | | 18-a=24 | | 4x+36-5=5 | | 4-3[7-(2*3)]= | | 4x^2+80x+275=0 | | 4(2.50)+4s=19.00 | | -2-x+5+7x= | | 12=2v+z | | 2-10x=5-4(3-2x) | | 3c+5(.5a+6)=4(.5a+6) | | -3(9y-15)=99 | | -4(5x+6)+7=14 |

Equations solver categories