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Elena L [17]
3 years ago
15

8c=5c+21 What would that be

Mathematics
2 answers:
NemiM [27]3 years ago
7 0
To solve for C, you have to get both of the numbers with a C on the same side.  So, subtract the 5c from the right side onto the left side.

8c = 5c + 21\\8c - 5c = 5c - 5c + 21\\3c = 21

Then, divide by 3 on each side.

3c = 21\\3c /3 = 21/3\\c = 7

So, c = 7.
siniylev [52]3 years ago
7 0
That would be a simple linear equation in the variable 'c'. ... To find its solution, first subtract 5c from each side, then divide each side by 3 .
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