SOLUTION: 3x - 9y = 45 -4x +12y = 20 incosistent or consistent

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Question 571902: 3x - 9y = 45
-4x +12y = 20
incosistent or consistent
Answer by Maths68(1474) About Me  (Show Source):
You can put this solution on YOUR website!
3x-9y=45...........(1)
3%28x-3y%29=45
3%28x-3y%29%2F3=45%2F3
cross%283%29%28x-3y%29%2Fcross%283%29=cross%2845%29%2Fcross%283%29
x-3y=15


-4x%2B12y=20...........(2)
-4%28x-3y%29=20
-4%28x-3y%29%2F4=20%2F4
cross%28-4%29%28x-3y%29%2Fcross%28-4%29=cross%2820%29%2Fcross%28-4%29
x-3y=-5
Pair of equations is inconsistent