13.6+(3.4c)+1.7c=3.4

Solution for 13.6+(3.4c)+1.7c=3.4 equation:

Simplifying
13.6 + (3.4c) + 1.7c = 3.4

Combine like terms: (3.4c) + 1.7c = 5.1c
13.6 + 5.1c = 3.4

Solving
13.6 + 5.1c = 3.4

Solving for variable 'c'.

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

Add '-13.6' to each side of the equation.
13.6 + -13.6 + 5.1c = 3.4 + -13.6

Combine like terms: 13.6 + -13.6 = 0.0
0.0 + 5.1c = 3.4 + -13.6
5.1c = 3.4 + -13.6

Combine like terms: 3.4 + -13.6 = -10.2
5.1c = -10.2

Divide each side by '5.1'.
c = -2

Simplifying
c = -2