y=4cos(4x)-2

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Solution for y=4cos(4x)-2 equation: 


Simplifying
y = 4cos(4x) + -2

Remove parenthesis around (4x)
y = 4cos * 4x + -2

Reorder the terms for easier multiplication:
y = 4 * 4cos * x + -2

Multiply 4 * 4
y = 16cos * x + -2

Multiply cos * x
y = 16cosx + -2

Reorder the terms:
y = -2 + 16cosx

Solving
y = -2 + 16cosx

Solving for variable 'y'.

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

Simplifying
y = -2 + 16cosx

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