3n-9=-8+2n+20

Simple and best practice solution for 3n-9=-8+2n+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-9=-8+2n+20 equation:


Simplifying
3n + -9 = -8 + 2n + 20

Reorder the terms:
-9 + 3n = -8 + 2n + 20

Reorder the terms:
-9 + 3n = -8 + 20 + 2n

Combine like terms: -8 + 20 = 12
-9 + 3n = 12 + 2n

Solving
-9 + 3n = 12 + 2n

Solving for variable 'n'.

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

Add '-2n' to each side of the equation.
-9 + 3n + -2n = 12 + 2n + -2n

Combine like terms: 3n + -2n = 1n
-9 + 1n = 12 + 2n + -2n

Combine like terms: 2n + -2n = 0
-9 + 1n = 12 + 0
-9 + 1n = 12

Add '9' to each side of the equation.
-9 + 9 + 1n = 12 + 9

Combine like terms: -9 + 9 = 0
0 + 1n = 12 + 9
1n = 12 + 9

Combine like terms: 12 + 9 = 21
1n = 21

Divide each side by '1'.
n = 21

Simplifying
n = 21

See similar equations:

| (9x+6)-(-8x-6)=x | | (4x-5)+35= | | 2(3n+5)=9(3n+9)+2 | | (-5x+91)=(-3x-11) | | y+2/2+y-1/3=4 | | (-0.8)(-0.15)= | | -6x=-582 | | 5.80+0.08x=0.12x | | (-5x+2)+(2x+1)= | | -3(2x-4)+7=x+3+2x | | 0=4x^3+25x^2-56x | | y=-3x^2-6x+10 | | 43.50=6(5.9-.5y)+6y | | 110t=150+80 | | 120=5(6n+6) | | 43.50=6y+6x | | 11x-3(3x-3)=x+3 | | 4(3)+-1(-.5)(3)+2=-11 | | x+2=2i | | 0.5+10=310-2x | | 43.50=6x+6y | | (6x+12)=(3x+6) | | X+14=3x+8 | | -33=6-3w | | 22d+26b=104.5 | | X+14=3x+14 | | (119-x)=(3x+11) | | 5(-3x-2)+8= | | 26c+5d=-84 | | x^2+44x-45= | | (2x-3)-(x+5)= | | 4(3)+-1y=-11 |

Equations solver categories