SOLUTION: how can i graph a linear system and tell how many solutions the system has 9x-3y=18 -12x+ 4y=24

SOLUTION: how can i graph a linear system and tell how many solutions the system has 9x-3y=18 -12x+ 4y=24

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Question 390485: how can i graph a linear system and tell how many solutions the system has
9x-3y=18
-12x+ 4y=24
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
Multiplying the first equation by 4 and the second by 3, we get

36x - 12y = 72
-36x + 12y = 72

Adding them, we get 0 = 144. This means that if there is a solution (x,y) then 0 = 144. Therefore, no solutions.
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