The correct answer is A. It satisfies the top equation but not the bottom equation.
This can be found by plugging in the given x and y values to the system, as seen in the attached picture.
I hope this helps! :)
3y-3y+-4=9y-3y-8
-4=6y-8
-4+8=6y-8+8
4=6y
y=4/6
y=2/3 (66.6%)
Step-by-step explanation:
So the answer for 33+45+78 is 156.
If you want to check that, you can use inverse operations, so subtract.
156-78=78. (Check 78)
78-45=33 (Check 45 and 33)
Well, now it's checked because we used all the factors of the equation!
There are 85 candy bars in each box, and he will have 340 candy bars left after he gives three boxes to a friend.