Answer :
The expression 12c - 5c is equivalent to 4c + 3c.
How to find equivalent expression?
Let's find the expression that is equivalent to 4c + 3c.
The expression that are equivalent are as follows:
4c + 3c = 7c
Therefore, the equivalent expression must be equals to 7c.
Hence,
12c - 5c = 7c
Therefore, the expression 12c - 5c is equivalent to 4c + 3c.
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