7n^2-14=-7

Simple and best practice solution for 7n^2-14=-7 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^2-14=-7 equation:


Simplifying
7n2 + -14 = -7

Reorder the terms:
-14 + 7n2 = -7

Solving
-14 + 7n2 = -7

Solving for variable 'n'.

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

Add '14' to each side of the equation.
-14 + 14 + 7n2 = -7 + 14

Combine like terms: -14 + 14 = 0
0 + 7n2 = -7 + 14
7n2 = -7 + 14

Combine like terms: -7 + 14 = 7
7n2 = 7

Divide each side by '7'.
n2 = 1

Simplifying
n2 = 1

Take the square root of each side:
n = {-1, 1}

See similar equations:

| 7n^2+2n=0 | | 6w^2-23w+7=0 | | 5=10 | | 5x-20=2x-14 | | 4x-28=6 | | -5m^2=-500 | | 7m^2=-21 | | 2x+8y=-6 | | -10x+8y=64 | | 5x-15=4x+8 | | 0x+8y=-16 | | 12n+26=-10 | | (11x+2)+(6x-5)= | | 3-x=13 | | 4x-8=5x-10 | | 0=-0.02d^2+2.6d-66.5 | | 12-5x=-8 | | (11x+2)=(6x-5) | | 3x+36=5x+20 | | a+b+2a+b+3a-4b= | | 100x-.98=300x+.76 | | 3w-2w= | | 3(x+1.44)=2x | | 10x-15=9x+6 | | (x+2)2+3= | | 7.7=4x+8.7 | | 5.5x+3-7.5x=1 | | 8x-55.3=x | | 5x^2=28x+49 | | 2ab+3ab= | | 7x+28=10x+10 | | 9x^9=25 |

Equations solver categories