2(5c-5.1)=-20.1

Solution for 2(5c-5.1)=-20.1 equation:

Simplifying
2(5c + -5.1) = -20.1

Reorder the terms:
2(-5.1 + 5c) = -20.1
(-5.1 * 2 + 5c * 2) = -20.1
(-10.2 + 10c) = -20.1

Solving
-10.2 + 10c = -20.1

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 = -20.1 + 10.2

Combine like terms: -10.2 + 10.2 = 0.0
0.0 + 10c = -20.1 + 10.2
10c = -20.1 + 10.2

Combine like terms: -20.1 + 10.2 = -9.9
10c = -9.9

Divide each side by '10'.
c = -0.99

Simplifying
c = -0.99