# SOLUTION: use Cramer's rule to solve the given system 4x+5y=12 3x+y=-2

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 Algebra: Matrices, determinant, Cramer rule Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Matrices-and-determiminant Question 58568: use Cramer's rule to solve the given system 4x+5y=12 3x+y=-2Answer by stanbon(57967)   (Show Source): You can put this solution on YOUR website!4x+5y=12 3x+y=-2 ---------------- Coefficient Determinant = 4-15=-11 x-Determinant = 12 5 -2 1 =12+10=22 So x=22/-11 = -2 ---------------- y-Determinant = 4 12 3 -2 =-8-36=-44 So y=-44/-11= 4 ------------------- Comment: When I write this it looks right but posting may move everything out of place. Good luck in interpreting what you see. Cheers, Stan H.