Answer:
0.63091482649
Step-by-step explanation:
3x=18 because you add the like terms 6 and 12
If x is how long your friend swims and y is how long you swim, the answer would be x + 15 = y
Answer:
-11 - 4c
Step-by-step explanation:
You have to distribute the -c to both of the numbers in the parentheses, so the eleven would become negative, and c multiplied by c is c squared. The positive 4 becomes negative 4, and 4 times c is 4c. Hope that helps!