3(-4n-9)=21

Simple and best practice solution for 3(-4n-9)=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 3(-4n-9)=21 equation: 


Simplifying
3(-4n + -9) = 21

Reorder the terms:
3(-9 + -4n) = 21
(-9 * 3 + -4n * 3) = 21
(-27 + -12n) = 21

Solving
-27 + -12n = 21

Solving for variable 'n'.

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

Add '27' to each side of the equation.
-27 + 27 + -12n = 21 + 27

Combine like terms: -27 + 27 = 0
0 + -12n = 21 + 27
-12n = 21 + 27

Combine like terms: 21 + 27 = 48
-12n = 48

Divide each side by '-12'.
n = -4

Simplifying
n = -4

See similar equations:

| 2(x-7)=327(7-x) | | Ln(x^2-20)=lnX | | 8-(2y+9)=3(4y+-5) | | 4x+2(x+6)=30 | | 5x-25=x | | 3x+8+16+x+17+20=52 | | 3(-4x+5)=12 | | 2+x=x-15-2 | | 8d-.333(6-9d)=42 | | 6x(12)=4(18) | | 12m+150=1138 | | -6b-6=6-b-3b | | 12k-20-5=1k+4 | | x+(-2x)=-4 | | B-24=52 | | 15+5x=90 | | 5y+3=2y+5 | | 2(x+8)=-(x+3) | | 5y-1=49 | | 4A+100C=2 | | 75=-5(-3*4x) | | 6Y-2=5Y-2 | | A+30B=0 | | -X-7=-2X-5 | | t-3=36 | | 10-8x=46 | | 6r+4=22+3r | | 58=5x-7 | | -15=5(3q-10)-5a | | 6h-1-10h=51 | | 23D+13=22D+25 | | 2n-4n=-8 |

Equations solver categories