Respuesta :

Hrishii

Answer:

C = 21

Step-by-step explanation:

[tex]-3c-15=-4c+6 \\ \therefore \: 4c - 3c = 6 + 15 \\ \huge \red{ \boxed{\therefore \: c = 21}}[/tex]
I did the whole math and accidentally deleted it but your answer will be C=21

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