7n-15=3n+9

Simple and best practice solution for 7n-15=3n+9 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 7n-15=3n+9 equation:


Simplifying
7n + -15 = 3n + 9

Reorder the terms:
-15 + 7n = 3n + 9

Reorder the terms:
-15 + 7n = 9 + 3n

Solving
-15 + 7n = 9 + 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
-15 + 7n + -3n = 9 + 3n + -3n

Combine like terms: 7n + -3n = 4n
-15 + 4n = 9 + 3n + -3n

Combine like terms: 3n + -3n = 0
-15 + 4n = 9 + 0
-15 + 4n = 9

Add '15' to each side of the equation.
-15 + 15 + 4n = 9 + 15

Combine like terms: -15 + 15 = 0
0 + 4n = 9 + 15
4n = 9 + 15

Combine like terms: 9 + 15 = 24
4n = 24

Divide each side by '4'.
n = 6

Simplifying
n = 6

See similar equations:

| 8n-5=3n+10 | | 25+25+26x= | | 4-2y+3=9 | | 5y/12-6=y/6-3 | | 6n-11=5n+33 | | 5ax-x-4a^2=0 | | 3n+4n-8=11n | | 4x+(2x+3)=1 | | 0.4*0.5= | | 30-13b=8b-138 | | 3n+4n-8=111n | | 4+a=6a-6 | | 3x-5y+4z=7 | | 6x^2-12+6=0 | | 8x-3y=-44 | | 6x^2-12+6= | | 3x-5y+4x=7 | | 3n+7n+15=75 | | 8x+-3y=-44 | | 5sin^2x+5sinx+2cos^2x=0 | | y=4cos(2x) | | -2x+5=x-2 | | X-1/5x^5=0 | | x-1/5x^4=0 | | 4r=15-3t | | -1/5x^4-1=0 | | 2x^2-x=3-6x | | 2(5x+1)=12 | | 8x-2=26 | | 0.7=7/w | | 3(x+2)-2(1-x)=4 | | 8+5n=63 |

Equations solver categories