-12=3.9+c

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Solution for -12=3.9+c equation:


Simplifying
-12 = 3.9 + c

Solving
-12 = 3.9 + c

Solving for variable 'c'.

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

Add '-1c' to each side of the equation.
-12 + -1c = 3.9 + c + -1c

Combine like terms: c + -1c = 0
-12 + -1c = 3.9 + 0
-12 + -1c = 3.9

Add '12' to each side of the equation.
-12 + 12 + -1c = 3.9 + 12

Combine like terms: -12 + 12 = 0
0 + -1c = 3.9 + 12
-1c = 3.9 + 12

Combine like terms: 3.9 + 12 = 15.9
-1c = 15.9

Divide each side by '-1'.
c = -15.9

Simplifying
c = -15.9

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