z=cos(5x-4y)

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Solution for z=cos(5x-4y) equation: 


Simplifying
z = cos(5x + -4y)
z = (5x * cos + -4y * cos)
z = (5cosx + -4cosy)

Solving
z = 5cosx + -4cosy

Solving for variable 'z'.

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

Simplifying
z = 5cosx + -4cosy

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