-3n+12=-42

Simple and best practice solution for -3n+12=-42 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+12=-42 equation: 


Simplifying
-3n + 12 = -42

Reorder the terms:
12 + -3n = -42

Solving
12 + -3n = -42

Solving for variable 'n'.

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

Add '-12' to each side of the equation.
12 + -12 + -3n = -42 + -12

Combine like terms: 12 + -12 = 0
0 + -3n = -42 + -12
-3n = -42 + -12

Combine like terms: -42 + -12 = -54
-3n = -54

Divide each side by '-3'.
n = 18

Simplifying
n = 18

See similar equations:

| 4h-2h=-9 | | -2y-7=9 | | -x+3=-3 | | a+a=a^2 | | 13-9x=49-16 | | 7x+7x+7x+7x+4x+4x=720 | | 4-4x=16+2x | | 8-16=z/4 | | 2a-5=1 | | (x/2)-7=6-(3x/5) | | 45-13=4(x-8) | | 7b+2= | | 16-44=5(x-1)-3 | | 2x+16+(x+14)+(x+14)+(2x+16)=360 | | 21x-19+3x+17+x=180 | | y+1=-4+5 | | 5a+(20a+30)=180 | | 12a+3a=180 | | 3x-11=43 | | (3a+50)=140 | | 130=(6a+10) | | 1.9n-0.9n-8.5=-1.8 | | 4=z+6 | | 23x-22x=-9+20 | | -34-(-17)=x/8 | | -5.8+6.6=5.7y-4.7y-5.6 | | 5(y-1)=2y-23 | | u+6=13 | | (-8,1)m=-3/4 | | v-(4/3)=(2/3) | | z-6.1=5.1 | | x-3.5=8.5 |

Equations solver categories