-13.6+9(-3.4c)+1.7c=3.4

Solution for -13.6+9(-3.4c)+1.7c=3.4 equation:

Simplifying
-13.6 + 9(-3.4c) + 1.7c = 3.4

Remove parenthesis around (-3.4c)
-13.6 + 9 * -3.4c + 1.7c = 3.4

Multiply 9 * -3.4
-13.6 + -30.6c + 1.7c = 3.4

Combine like terms: -30.6c + 1.7c = -28.9c
-13.6 + -28.9c = 3.4

Solving
-13.6 + -28.9c = 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 + -28.9c = 3.4 + 13.6

Combine like terms: -13.6 + 13.6 = 0.0
0.0 + -28.9c = 3.4 + 13.6
-28.9c = 3.4 + 13.6

Combine like terms: 3.4 + 13.6 = 17
-28.9c = 17

Divide each side by '-28.9'.
c = -0.5882352941

Simplifying
c = -0.5882352941