7n^2-7=

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Solution for 7n^2-7= 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}

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