Answer:
9
Step-by-step explanation:
6.4 x 3=19.2
You move 19.2 to the other side and subtract.
44.4 - 19.2=25.2
Then you do 25.2 divided by 2.8 that will give you 9.
Answer:
y=9
Step-by-step explanation:
I'm going to write this out in equations, let me know if you want it in words too.
1. 6.4x + 2.8y = 44.4 (subtract 6.4x from both sides to get y alone)
2. 2.8y = -6.4x + 44.4 (divide both sides by 2.8)
3. y = -2.2857x + 15.8571 (substitute 3 for x)
4. y = -2.2857(3) + 15.8571 (multiply -2.2857 by 3)
5. y = -6.8571 + 15.8571 (finish solving)
6. y = 9
