Question 825076
Solve using Matrices-----
4x-y=5
3x-3y=0
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|4 -1|
|3 -3|
Det = 4*-3 - 3*-1 = -12 + 3 = -9
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For x:
|-1 -5|
|-3 0|
x*Det = -1*0 - (-3*-5) = -15
x = -15/-9 = 5/3
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For -y*Det:
|4 -5|
|3 0|
-y*Det = 4*0 - 3*-5 = 15
-y = 15/-9
y = 5/3