Answer:
13x + 5y
Step-by-step explanation:
Step 1: Set up expression
(6x + 9y) + (7x - 4y)
Step 2: Combine like terms
6x + 7x = 13x
9y - 4y = 5y
13x + 5y
The answer to your question is x=-21. Please mark brainlest
Answer:
Step-by-step explanation:
well, every hour she drives, she loses 2 gallons. so when she was 2 hours in, she was at 8 gallons, when she was 1 hour in, she was at 10 gallons, and when she started, she was at 12 gallons.
For a circle its Pier Squared