2*Cos(7x)-1=0

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Solution for 2*Cos(7x)-1=0 equation:


Simplifying
2Cos(7x) + -1 = 0

Remove parenthesis around (7x)
2osC * 7x + -1 = 0

Reorder the terms for easier multiplication:
2 * 7osC * x + -1 = 0

Multiply 2 * 7
14osC * x + -1 = 0

Multiply osC * x
14osxC + -1 = 0

Reorder the terms:
-1 + 14osxC = 0

Solving
-1 + 14osxC = 0

Solving for variable 'o'.

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

Add '1' to each side of the equation.
-1 + 1 + 14osxC = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 14osxC = 0 + 1
14osxC = 0 + 1

Combine like terms: 0 + 1 = 1
14osxC = 1

Divide each side by '14sxC'.
o = 0.07142857143s-1x-1C-1

Simplifying
o = 0.07142857143s-1x-1C-1

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