9=20cos(x)

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Solution for 9=20cos(x) equation: 


Simplifying
9 = 20cos(x)

Multiply cos * x
9 = 20cosx

Solving
9 = 20cosx

Solving for variable 'c'.

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

Add '-20cosx' to each side of the equation.
9 + -20cosx = 20cosx + -20cosx

Combine like terms: 20cosx + -20cosx = 0
9 + -20cosx = 0

Add '-9' to each side of the equation.
9 + -9 + -20cosx = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -20cosx = 0 + -9
-20cosx = 0 + -9

Combine like terms: 0 + -9 = -9
-20cosx = -9

Divide each side by '-20osx'.
c = 0.45o-1s-1x-1

Simplifying
c = 0.45o-1s-1x-1

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