5c+7-8=21

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Solution for 5c+7-8=21 equation: 



5c+7-8=21

We move all terms to the left:

5c+7-8-(21)=0

We add all the numbers together, and all the variables

5c-22=0

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

5c=22

c=22/5

c=4+2/5

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