7n^2-7=0

Simple and best practice solution for 7n^2-7=0 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^2-7=0 equation:


Simplifying
7n2 + -7 = 0

Reorder the terms:
-7 + 7n2 = 0

Solving
-7 + 7n2 = 0

Solving for variable 'n'.

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

Add '7' to each side of the equation.
-7 + 7 + 7n2 = 0 + 7

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

Combine like terms: 0 + 7 = 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:

| 7d-6d=-19 | | 3x-6+(-6)=3x+0 | | f(x)=x^2+10x+23 | | 3-4t=-17 | | (x-7)(x+8)=-(x+8) | | 2x-4(x-5)=-8+5x-14 | | 2w^2+6w=5 | | y/8=2 | | 24-8y=16 | | 525-h=1050 | | 49=-(m+1)+2(5m-2) | | (6x-4)+(2x+2)=90 | | 72p=9 | | -10=4-y | | -3(d+1)-d-8=-4(d+5)+9 | | (x-y)dy+(y+x+1)dx=0 | | 0.3=0.01+2.9 | | 6r-25=-2 | | 50t=100 | | 2x/2=98/2 | | X^2+20x+100=50 | | 2(x+15)=6x-10 | | -4p-3(6-4p)=6(p-5)-18 | | 5n^2=-12n-3 | | 29=-2+7(r-5) | | y=18+x | | -0.1(20)+0.8x=0.6(20+x) | | -4m=32 | | 5x-8-8+10-3x=9-x+6-5x-13 | | w(9w^2+7)=9(w^3+7) | | 15n^2+19n-2=0 | | .66666-b=5b |

Equations solver categories