3=12-c

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Solution for 3=12-c equation: 



3=12-c

We move all terms to the left:

3-(12-c)=0

We add all the numbers together, and all the variables

-(-1c+12)+3=0

We get rid of parentheses

1c-12+3=0

We add all the numbers together, and all the variables

c-9=0

We move all terms containing c to the left, all other terms to the right

c=9

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