2.1c+1.3c-2.9=-13.1

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Solution for 2.1c+1.3c-2.9=-13.1 equation: 


Simplifying
2.1c + 1.3c + -2.9 = -13.1

Reorder the terms:
-2.9 + 2.1c + 1.3c = -13.1

Combine like terms: 2.1c + 1.3c = 3.4c
-2.9 + 3.4c = -13.1

Solving
-2.9 + 3.4c = -13.1

Solving for variable 'c'.

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

Add '2.9' to each side of the equation.
-2.9 + 2.9 + 3.4c = -13.1 + 2.9

Combine like terms: -2.9 + 2.9 = 0.0
0.0 + 3.4c = -13.1 + 2.9
3.4c = -13.1 + 2.9

Combine like terms: -13.1 + 2.9 = -10.2
3.4c = -10.2

Divide each side by '3.4'.
c = -3

Simplifying
c = -3

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