Answer:I'm gonna say mechanical or kinetic depending on how you look at it.
Explanation:
Yes they are equivalent because 7x5=35 and 8x x 5=48x
The law of conservation of matter states that matter cannot be created nor destroyed. It can only be transformed from one form to another. To state an example where this is shown, let's say a piece of paper is burning. Not having a scientific background, you would say that the matter is being destroyed. But in reality, the paper is simple being transformed to ash, carbon dioxide, and water vapor. Overall, the total mass would still remain the same.