5cos(2x)-7=-2

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Solution for 5cos(2x)-7=-2 equation:


Simplifying
5cos(2x) + -7 = -2

Remove parenthesis around (2x)
5cos * 2x + -7 = -2

Reorder the terms for easier multiplication:
5 * 2cos * x + -7 = -2

Multiply 5 * 2
10cos * x + -7 = -2

Multiply cos * x
10cosx + -7 = -2

Reorder the terms:
-7 + 10cosx = -2

Solving
-7 + 10cosx = -2

Solving for variable 'c'.

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

Add '7' to each side of the equation.
-7 + 7 + 10cosx = -2 + 7

Combine like terms: -7 + 7 = 0
0 + 10cosx = -2 + 7
10cosx = -2 + 7

Combine like terms: -2 + 7 = 5
10cosx = 5

Divide each side by '10osx'.
c = 0.5o-1s-1x-1

Simplifying
c = 0.5o-1s-1x-1

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