3.4=13.6+[-3.4c]+1.7c

Solution for 3.4=13.6+[-3.4c]+1.7c equation:

Simplifying
3.4 = 13.6 + [-3.4c] + 1.7c

Combine like terms: [-3.4c] + 1.7c = -1.7c
3.4 = 13.6 + -1.7c

Solving
3.4 = 13.6 + -1.7c

Solving for variable 'c'.

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

Add '1.7c' to each side of the equation.
3.4 + 1.7c = 13.6 + -1.7c + 1.7c

Combine like terms: -1.7c + 1.7c = 0.0
3.4 + 1.7c = 13.6 + 0.0
3.4 + 1.7c = 13.6

Add '-3.4' to each side of the equation.
3.4 + -3.4 + 1.7c = 13.6 + -3.4

Combine like terms: 3.4 + -3.4 = 0.0
0.0 + 1.7c = 13.6 + -3.4
1.7c = 13.6 + -3.4

Combine like terms: 13.6 + -3.4 = 10.2
1.7c = 10.2

Divide each side by '1.7'.
c = 6

Simplifying
c = 6