Determine which system below will produce infinitely many solutions.

A. - 6x + 3y = 18

4x - 3y = 6

B. 2x + 4y = 24

6x + 12y = 36

C. 3x - y = 14

-9x + 3y = - 42

D. 5x + 2y = 13

-x + 4y = - 6

If one equation of the pair can be formed by multiplying the other by a constant then the 2 equations are the same and there are infinite solutions.

Note that the pair in option C falls into that category The second equation is formed form the first by multiplying by - 3.

C is the answer