-7n^2-13=-36-n-8n^2

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Solution for -7n^2-13=-36-n-8n^2 equation:


Simplifying
-7n2 + -13 = -36 + -1n + -8n2

Reorder the terms:
-13 + -7n2 = -36 + -1n + -8n2

Solving
-13 + -7n2 = -36 + -1n + -8n2

Solving for variable 'n'.

Reorder the terms:
-13 + 36 + n + -7n2 + 8n2 = -36 + -1n + -8n2 + 36 + n + 8n2

Combine like terms: -13 + 36 = 23
23 + n + -7n2 + 8n2 = -36 + -1n + -8n2 + 36 + n + 8n2

Combine like terms: -7n2 + 8n2 = 1n2
23 + n + 1n2 = -36 + -1n + -8n2 + 36 + n + 8n2

Reorder the terms:
23 + n + 1n2 = -36 + 36 + -1n + n + -8n2 + 8n2

Combine like terms: -36 + 36 = 0
23 + n + 1n2 = 0 + -1n + n + -8n2 + 8n2
23 + n + 1n2 = -1n + n + -8n2 + 8n2

Combine like terms: -1n + n = 0
23 + n + 1n2 = 0 + -8n2 + 8n2
23 + n + 1n2 = -8n2 + 8n2

Combine like terms: -8n2 + 8n2 = 0
23 + n + 1n2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-23' to each side of the equation.
23 + n + -23 + n2 = 0 + -23

Reorder the terms:
23 + -23 + n + n2 = 0 + -23

Combine like terms: 23 + -23 = 0
0 + n + n2 = 0 + -23
n + n2 = 0 + -23

Combine like terms: 0 + -23 = -23
n + n2 = -23

The n term is n.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
n + 0.25 + n2 = -23 + 0.25

Reorder the terms:
0.25 + n + n2 = -23 + 0.25

Combine like terms: -23 + 0.25 = -22.75
0.25 + n + n2 = -22.75

Factor a perfect square on the left side:
(n + 0.5)(n + 0.5) = -22.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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