0.3+0.6(25-c)=12

Solution for 0.3+0.6(25-c)=12 equation:

Simplifying
0.3 + 0.6(25 + -1c) = 12
0.3 + (25 * 0.6 + -1c * 0.6) = 12
0.3 + (15 + -0.6c) = 12

Combine like terms: 0.3 + 15 = 15.3
15.3 + -0.6c = 12

Solving
15.3 + -0.6c = 12

Solving for variable 'c'.

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

Add '-15.3' to each side of the equation.
15.3 + -15.3 + -0.6c = 12 + -15.3

Combine like terms: 15.3 + -15.3 = 0.0
0.0 + -0.6c = 12 + -15.3
-0.6c = 12 + -15.3

Combine like terms: 12 + -15.3 = -3.3
-0.6c = -3.3

Divide each side by '-0.6'.
c = 5.5

Simplifying
c = 5.5