3c+20=7c

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Solution for 3c+20=7c equation: 



3c+20=7c

We move all terms to the left:

3c+20-(7c)=0

We add all the numbers together, and all the variables

-4c+20=0

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

-4c=-20

c=-20/-4

c=+5

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