3cos(2x)-1=0.5

Solution for 3cos(2x)-1=0.5 equation:

Simplifying
3cos(2x) + -1 = 0.5

Remove parenthesis around (2x)
3cos * 2x + -1 = 0.5

Reorder the terms for easier multiplication:
3 * 2cos * x + -1 = 0.5

Multiply 3 * 2
6cos * x + -1 = 0.5

Multiply cos * x
6cosx + -1 = 0.5

Reorder the terms:
-1 + 6cosx = 0.5

Solving
-1 + 6cosx = 0.5

Solving for variable 'c'.

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

Add '1' to each side of the equation.
-1 + 1 + 6cosx = 0.5 + 1

Combine like terms: -1 + 1 = 0
0 + 6cosx = 0.5 + 1
6cosx = 0.5 + 1

Combine like terms: 0.5 + 1 = 1.5
6cosx = 1.5

Divide each side by '6osx'.
c = 0.25o-1s-1x-1

Simplifying
c = 0.25o-1s-1x-1