3n+15=7n-1

Simple and best practice solution for 3n+15=7n-1 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+15=7n-1 equation:


Simplifying
3n + 15 = 7n + -1

Reorder the terms:
15 + 3n = 7n + -1

Reorder the terms:
15 + 3n = -1 + 7n

Solving
15 + 3n = -1 + 7n

Solving for variable 'n'.

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

Add '-7n' to each side of the equation.
15 + 3n + -7n = -1 + 7n + -7n

Combine like terms: 3n + -7n = -4n
15 + -4n = -1 + 7n + -7n

Combine like terms: 7n + -7n = 0
15 + -4n = -1 + 0
15 + -4n = -1

Add '-15' to each side of the equation.
15 + -15 + -4n = -1 + -15

Combine like terms: 15 + -15 = 0
0 + -4n = -1 + -15
-4n = -1 + -15

Combine like terms: -1 + -15 = -16
-4n = -16

Divide each side by '-4'.
n = 4

Simplifying
n = 4

See similar equations:

| 4+3n+2=-9 | | y=2cos(3x+1) | | -4=2x+x | | 4n+8=5n-2 | | 4*log(x-9)=3 | | -1+7x=-186 | | 7e^9t=11e^8t | | 15=-6n+3n | | -7r=-21 | | p+6=2 | | x^4-49x^2-360=0 | | y-8=4x | | a^3+b^2=72 | | y=(3m+2n)(6m-8n) | | 2.3x-0.4=15.7 | | (3x)x=48 | | X*-6x+5=0 | | -68=-5x-8 | | x^2+v^2=y | | 5=25t+10 | | 21=-9 | | 21=9 | | 5y+x=w | | y=-sin(3.14x+1)-2 | | -4+8V=6+3v | | X^2(x-3)=320 | | y=(5x-3)(2x+1) | | -6(4d+10)+7d=-3d | | 202=(4x-1)*(5x+3) | | 3(n-3)-(7-n)= | | 50.4=2.5x*(15.4+y) | | 12=7t-44 |

Equations solver categories