Answer:
Step-by-step explanation:
Cross multiplication can be used but not in the beginning. First x should be isolated.

Now subtract
from both sides

In this stage, cross multiplication can be used.

D. Multiply the top equation by 2
That way, 3y(2) - 6y = 6y - 6y = 0
hope this helps
Answer:
1440
Step-by-step explanation:
It’s 1440
A acute angle is an angle that is less than 90 degrees but larger than 0 degrees.