Respuesta :
1-3c=9c+7
Add 3c to both sides
1=12c+7
Subtract 7 from both sides
-6=12c
Divide 12 on both sides
Final Answer: -6/12=c or -3/6 or -1/2 *All answers are equivalent to each other.
Add 3c to both sides
1=12c+7
Subtract 7 from both sides
-6=12c
Divide 12 on both sides
Final Answer: -6/12=c or -3/6 or -1/2 *All answers are equivalent to each other.