Answer:
Multiply the second equation's terms by 3. Solve for x.
Step-by-step explanation:
You will get:
2x+9y=28
9x-9y=42
Add them to get:
11x=70.
You can solve from there.
Answer:
It is a function
Step-by-step explanation:
The x has only one y and that makes it a function
Answer:
Step-by-step explanation:
Answer: 7 inches
Step-by-step explanation:
4 times 1 3/4 is 7