y=7cos(3x)+7cos(6x)

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Solution for y=7cos(3x)+7cos(6x) equation:


Simplifying
y = 7cos(3x) + 7cos(6x)

Remove parenthesis around (3x)
y = 7cos * 3x + 7cos(6x)

Reorder the terms for easier multiplication:
y = 7 * 3cos * x + 7cos(6x)

Multiply 7 * 3
y = 21cos * x + 7cos(6x)

Multiply cos * x
y = 21cosx + 7cos(6x)

Remove parenthesis around (6x)
y = 21cosx + 7cos * 6x

Reorder the terms for easier multiplication:
y = 21cosx + 7 * 6cos * x

Multiply 7 * 6
y = 21cosx + 42cos * x

Multiply cos * x
y = 21cosx + 42cosx

Combine like terms: 21cosx + 42cosx = 63cosx
y = 63cosx

Solving
y = 63cosx

Solving for variable 'y'.

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

Simplifying
y = 63cosx

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