3=7cos(2x)

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Solution for 3=7cos(2x) equation:


Simplifying
3 = 7cos(2x)

Remove parenthesis around (2x)
3 = 7cos * 2x

Reorder the terms for easier multiplication:
3 = 7 * 2cos * x

Multiply 7 * 2
3 = 14cos * x

Multiply cos * x
3 = 14cosx

Solving
3 = 14cosx

Solving for variable 'c'.

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

Add '-14cosx' to each side of the equation.
3 + -14cosx = 14cosx + -14cosx

Combine like terms: 14cosx + -14cosx = 0
3 + -14cosx = 0

Add '-3' to each side of the equation.
3 + -3 + -14cosx = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -14cosx = 0 + -3
-14cosx = 0 + -3

Combine like terms: 0 + -3 = -3
-14cosx = -3

Divide each side by '-14osx'.
c = 0.2142857143o-1s-1x-1

Simplifying
c = 0.2142857143o-1s-1x-1

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