20-(40*cos(4*x))=0

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Solution for 20-(40*cos(4*x))=0 equation: 


Simplifying
20 + -1(40cos(4x)) = 0

Remove parenthesis around (4x)
20 + -1(40cos * 4x) = 0

Reorder the terms for easier multiplication:
20 + -1(40 * 4cos * x) = 0

Multiply 40 * 4
20 + -1(160cos * x) = 0

Multiply cos * x
20 + -1(160cosx) = 0

Remove parenthesis around (160cosx)
20 + -1 * 160cosx = 0

Multiply -1 * 160
20 + -160cosx = 0

Solving
20 + -160cosx = 0

Solving for variable 'c'.

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

Add '-20' to each side of the equation.
20 + -20 + -160cosx = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -160cosx = 0 + -20
-160cosx = 0 + -20

Combine like terms: 0 + -20 = -20
-160cosx = -20

Divide each side by '-160osx'.
c = 0.125o-1s-1x-1

Simplifying
c = 0.125o-1s-1x-1

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