-0.6=cos(30t)

Solution for -0.6=cos(30t) equation:

Simplifying
-0.6 = cos(30t)

Remove parenthesis around (30t)
-0.6 = cos * 30t

Reorder the terms for easier multiplication:
-0.6 = 30cos * t

Multiply cos * t
-0.6 = 30cost

Solving
-0.6 = 30cost

Solving for variable 'c'.

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

Add '-30cost' to each side of the equation.
-0.6 + -30cost = 30cost + -30cost

Combine like terms: 30cost + -30cost = 0
-0.6 + -30cost = 0

Add '0.6' to each side of the equation.
-0.6 + 0.6 + -30cost = 0 + 0.6

Combine like terms: -0.6 + 0.6 = 0.0
0.0 + -30cost = 0 + 0.6
-30cost = 0 + 0.6

Combine like terms: 0 + 0.6 = 0.6
-30cost = 0.6

Divide each side by '-30ost'.
c = -0.02o-1s-1t-1

Simplifying
c = -0.02o-1s-1t-1