2(5c-5.1)=-20.2

Solution for 2(5c-5.1)=-20.2 equation:

Simplifying
2(5c + -5.1) = -20.2

Reorder the terms:
2(-5.1 + 5c) = -20.2
(-5.1 * 2 + 5c * 2) = -20.2
(-10.2 + 10c) = -20.2

Solving
-10.2 + 10c = -20.2

Solving for variable 'c'.

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

Add '10.2' to each side of the equation.
-10.2 + 10.2 + 10c = -20.2 + 10.2

Combine like terms: -10.2 + 10.2 = 0.0
0.0 + 10c = -20.2 + 10.2
10c = -20.2 + 10.2

Combine like terms: -20.2 + 10.2 = -10
10c = -10

Divide each side by '10'.
c = -1

Simplifying
c = -1