7cos(5x)+9=12

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Solution for 7cos(5x)+9=12 equation:


Simplifying
7cos(5x) + 9 = 12

Remove parenthesis around (5x)
7cos * 5x + 9 = 12

Reorder the terms for easier multiplication:
7 * 5cos * x + 9 = 12

Multiply 7 * 5
35cos * x + 9 = 12

Multiply cos * x
35cosx + 9 = 12

Reorder the terms:
9 + 35cosx = 12

Solving
9 + 35cosx = 12

Solving for variable 'c'.

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

Add '-9' to each side of the equation.
9 + -9 + 35cosx = 12 + -9

Combine like terms: 9 + -9 = 0
0 + 35cosx = 12 + -9
35cosx = 12 + -9

Combine like terms: 12 + -9 = 3
35cosx = 3

Divide each side by '35osx'.
c = 0.08571428571o-1s-1x-1

Simplifying
c = 0.08571428571o-1s-1x-1

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