Given the system
|-x-3y- 4z = 2
-x+2y-4z = 0, which is true?
2x-y+5z = 1
The system has no solutions.
The system has exactly one solution.
The system has exactly three solutions.
The system has an infinite number of solutions.

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.

hope it is correct if not i'm srry i tried to

Ibelieve it’s b? hopefully