B
The 3xis positive so it goes up
Answer:
1439
Step-by-step explanation:
Answer: F
Step-by-step explanation:
- This does not have infinitely many solutions (adding the equations, we get a fixed value of x)
- This has no solutions (the left hand sides are the same but the right hand sides have different values)
- This has one solution (the first equation givess a fixed value for x)
- This has no solutions (same reason as 2)
- This has one solution (same reason as 3, just the second equation instead of the first)
- This has infinitely many solutions (multiplying both sides of the top equation by -2 gives the bottom equation).
Answer:
42
Step-by-step explanation:
PEMDAS
-6*-5+12
multiply -6 and -5 first
30+12
then add
42