3.9-c=31

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Solution for 3.9-c=31 equation: 


Simplifying
3.9 + -1c = 31

Solving
3.9 + -1c = 31

Solving for variable 'c'.

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

Add '-3.9' to each side of the equation.
3.9 + -3.9 + -1c = 31 + -3.9

Combine like terms: 3.9 + -3.9 = 0.0
0.0 + -1c = 31 + -3.9
-1c = 31 + -3.9

Combine like terms: 31 + -3.9 = 27.1
-1c = 27.1

Divide each side by '-1'.
c = -27.1

Simplifying
c = -27.1

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