3n+(5-n)=20

Simple and best practice solution for 3n+(5-n)=20 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+(5-n)=20 equation:


Simplifying
3n + (5 + -1n) = 20

Remove parenthesis around (5 + -1n)
3n + 5 + -1n = 20

Reorder the terms:
5 + 3n + -1n = 20

Combine like terms: 3n + -1n = 2n
5 + 2n = 20

Solving
5 + 2n = 20

Solving for variable 'n'.

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

Add '-5' to each side of the equation.
5 + -5 + 2n = 20 + -5

Combine like terms: 5 + -5 = 0
0 + 2n = 20 + -5
2n = 20 + -5

Combine like terms: 20 + -5 = 15
2n = 15

Divide each side by '2'.
n = 7.5

Simplifying
n = 7.5

See similar equations:

| 6-(4*8)+2n=30 | | 52-5x=7x+16 | | -3z+8(z+y)= | | 8x-4=9x+3 | | 2-5x=16+2x | | 33-7x=2x+22 | | 4+(n-7)=8 | | 4(3c-1)-2=7c+9 | | 12-10x=108-38x | | 2x+1=3x-5 | | 2(x-4)=5x+7 | | -31-8x=10x+23 | | 4x+x+1=7(x-3) | | 27x^3-8=0 | | 3x+10=-16-10x | | 2g+3(g+5)= | | 25X^2+10X+1=0 | | 8x+9-12x=4x-13-5x | | 121-5x=3x+9 | | 5x^2+4x-7=0 | | 4x^2+9x-10=0 | | x^2-12x+32=0 | | -6y+7=-7y+9 | | (x+5)(x+5)=36 | | 3x^2-5x-11=0 | | -0.848=0.2(6.5n-2) | | 4x^2=24x | | 8+5x=28+x | | -1=x-4 | | x^2-26x=0 | | (y+5)=16 | | 3x^5-15x^3+12x=0 |

Equations solver categories