3=12+c

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Solution for 3=12+c equation:


Simplifying
3 = 12 + c

Solving
3 = 12 + 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.
3 + -1c = 12 + c + -1c

Combine like terms: c + -1c = 0
3 + -1c = 12 + 0
3 + -1c = 12

Add '-3' to each side of the equation.
3 + -3 + -1c = 12 + -3

Combine like terms: 3 + -3 = 0
0 + -1c = 12 + -3
-1c = 12 + -3

Combine like terms: 12 + -3 = 9
-1c = 9

Divide each side by '-1'.
c = -9

Simplifying
c = -9

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