.5(c+2.8)-c=.6+.3

Solution for .5(c+2.8)-c=.6+.3 equation:

Simplifying
0.5(c + 2.8) + -1c = 0.6 + 0.3

Reorder the terms:
0.5(2.8 + c) + -1c = 0.6 + 0.3
(2.8 * 0.5 + c * 0.5) + -1c = 0.6 + 0.3
(1.4 + 0.5c) + -1c = 0.6 + 0.3

Combine like terms: 0.5c + -1c = -0.5c
1.4 + -0.5c = 0.6 + 0.3

Combine like terms: 0.6 + 0.3 = 0.9
1.4 + -0.5c = 0.9

Solving
1.4 + -0.5c = 0.9

Solving for variable 'c'.

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

Add '-1.4' to each side of the equation.
1.4 + -1.4 + -0.5c = 0.9 + -1.4

Combine like terms: 1.4 + -1.4 = 0.0
0.0 + -0.5c = 0.9 + -1.4
-0.5c = 0.9 + -1.4

Combine like terms: 0.9 + -1.4 = -0.5
-0.5c = -0.5

Divide each side by '-0.5'.
c = 1

Simplifying
c = 1