8c+3=6c+21

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Solution for 8c+3=6c+21 equation: 



8c+3=6c+21

We move all terms to the left:

8c+3-(6c+21)=0

We get rid of parentheses

8c-6c-21+3=0

We add all the numbers together, and all the variables

2c-18=0

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

2c=18

c=18/2

c=9

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