Asked by sufficient
Solve 4x+6y=32 and
3x+2y=12, using cramer rule
3x+2y=12, using cramer rule
Answers
Answered by
oobleck
First, I'd divide the 1st equation by 2, giving 2x+3y=16. Then,
D =
|2 3|
|3 2| = -5
Dx =
|16 3|
|12 2| = -4
Dy =
|2 16|
|3 12| = -24
x = Dx/D = 4/5
y = Dy/D = 24/5
D =
|2 3|
|3 2| = -5
Dx =
|16 3|
|12 2| = -4
Dy =
|2 16|
|3 12| = -24
x = Dx/D = 4/5
y = Dy/D = 24/5
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