4n-7n=21

Simple and best practice solution for 4n-7n=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 4n-7n=21 equation: 


Simplifying
4n + -7n = 21

Combine like terms: 4n + -7n = -3n
-3n = 21

Solving
-3n = 21

Solving for variable 'n'.

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

Divide each side by '-3'.
n = -7

Simplifying
n = -7

See similar equations:

| 8m=5 | | -8(5x+5)+7= | | 5n+6+7n=2-20 | | x^2-x+2=0 | | 19=2n-7 | | 6n-8=-62 | | x^2-x+4=0 | | 3(2z-2)-16= | | -3n+5=53 | | -99=-45 | | 6x^2+7x=24 | | 6x^2+7x=27 | | 36-5x=4x | | -8x-26=0 | | -.75(16x-12y)= | | -4.3-313.2-2= | | 4x^2=-13x-3 | | -4p-3=2+p | | -(-3y-4z+2)= | | 3(-3x+1)=-8(x+1) | | -6+(-2)x+8+(-3)x= | | 4x^2=-9x-2 | | (7b-1)-2(3b+2)=-4 | | -2+2= | | 4x^2=-5x-1 | | 3x+14=-28 | | 2x^2=-9x-4 | | 2(n+3)=10 | | -(2-11)= | | (6x^2-1)*(4x+2)=142 | | 11-2= | | 2-11= |

Equations solver categories