Answer:
542.9
Step-by-step explanation:
Please mark brainliest
Answer:
Step-by-step explanation:
Adding 10 to both sides.
Adding 
to both sides.
Dividing both sides by 10.
∴
Use substitution and substitute y into the other equation. One of the equations already gives you y in terms of x, so use that and substitute it into the other equation. y = 3x - 4
Plug into the other equation: -3y = -9x + 12
-3(3x-4) = -9x + 12
-9x + 12 = -9x + 12
This is an identity. So that means that any value of x makes this equation true. So B.
Hope this helps
Answer = 4,328.12
4,000
300
20
8
0.1
0.02
Thé correct answer is the third one
