Question

Determine which system below will produce infinitely many solutions.

-6x + 3y = 18
4x - 3y = 6

2x + 4y = 24
6x + 12y = 36

3x - y = 14
-9x + 3y = -42

5x + 2y = 13
-x + 4y = -6

Answer 1

look at your pair of equations, look for a pattern for example
2x + 4y = 24
6x + 12y = 36
2x times 3 is 6x
4y times 3 is 12y
24 times 3 is what? if it is 36 then this is your solution, if not then it is not

Answer 2

72 so it's not

Answer 3

Im going to go with c?
3x-y=14
-9x+3y=-42

3×-3=-9
-1×-3=3
14×-3=-42

Answer 4

yes

Answer 5

okay thanks :)

Answer 6

np