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Simplifying
8n2 + 7 + -15 = -7
Reorder the terms:
7 + -15 + 8n2 = -7
Combine like terms: 7 + -15 = -8
-8 + 8n2 = -7
Solving
-8 + 8n2 = -7
Solving for variable 'n'.
Move all terms containing n to the left, all other terms to the right.
Add '8' to each side of the equation.
-8 + 8 + 8n2 = -7 + 8
Combine like terms: -8 + 8 = 0
0 + 8n2 = -7 + 8
8n2 = -7 + 8
Combine like terms: -7 + 8 = 1
8n2 = 1
Divide each side by '8'.
n2 = 0.125
Simplifying
n2 = 0.125
Take the square root of each side:
n = {-0.353553391, 0.353553391}
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