Try this solution:
1. rules:

2. according to the rule described above:
302400. the amount of seconds in a week divided by 2
Answer:
8
Step-by-step explanation:
Combine like terms, -4 and 8, 2x and 3x.
After combining the terms, you get x+4=12.
Subtract 4 from both sides and get x=8
5x squared+7x+2. That is the answer
Answer:
−103
Step-by-step explanation: