y(x)=ln(cos(7*x^9-1))

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Solution for y(x)=ln(cos(7*x^9-1)) equation: 


Simplifying
y(x) = ln(cos(7x9 + -1))

Multiply y * x
xy = ln(cos(7x9 + -1))

Reorder the terms:
xy = ln(cos(-1 + 7x9))
xy = ln((-1 * cos + 7x9 * cos))
xy = ln((-1cos + 7cosx9))
xy = (-1cos * ln + 7cosx9 * ln)
xy = (-1clnos + 7clnosx9)

Solving
xy = -1clnos + 7clnosx9

Solving for variable 'x'.

Reorder the terms:
clnos + -7clnosx9 + xy = -1clnos + 7clnosx9 + clnos + -7clnosx9

Reorder the terms:
clnos + -7clnosx9 + xy = -1clnos + clnos + 7clnosx9 + -7clnosx9

Combine like terms: -1clnos + clnos = 0
clnos + -7clnosx9 + xy = 0 + 7clnosx9 + -7clnosx9
clnos + -7clnosx9 + xy = 7clnosx9 + -7clnosx9

Combine like terms: 7clnosx9 + -7clnosx9 = 0
clnos + -7clnosx9 + xy = 0

The solution to this equation could not be determined.

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