3c-9=7.5+5c

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Solution for 3c-9=7.5+5c equation: 



3c-9=7.5+5c

We move all terms to the left:

3c-9-(7.5+5c)=0

We add all the numbers together, and all the variables

3c-(5c+7.5)-9=0

We get rid of parentheses

3c-5c-7.5-9=0

We add all the numbers together, and all the variables

-2c-16.5=0

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

-2c=16.5

c=16.5/-2

c=-8+0.5/2

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