5cos(x+8.5)-1=0

Solution for 5cos(x+8.5)-1=0 equation:

Simplifying
5cos(x + 8.5) + -1 = 0

Reorder the terms:
5cos(8.5 + x) + -1 = 0
(8.5 * 5cos + x * 5cos) + -1 = 0
(42.5cos + 5cosx) + -1 = 0

Reorder the terms:
-1 + 42.5cos + 5cosx = 0

Solving
-1 + 42.5cos + 5cosx = 0

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 + 42.5cos + 1 + 5cosx = 0 + 1

Reorder the terms:
-1 + 1 + 42.5cos + 5cosx = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 42.5cos + 5cosx = 0 + 1
42.5cos + 5cosx = 0 + 1

Combine like terms: 0 + 1 = 1
42.5cos + 5cosx = 1

Reorder the terms:
-1 + 42.5cos + 5cosx = 1 + -1

Combine like terms: 1 + -1 = 0
-1 + 42.5cos + 5cosx = 0

The solution to this equation could not be determined.