SOLUTION: Suppose we have the system of equations: 3x+4y=27 and 2x-5y=-28 Using Cramer'r rule, we have D=? Thank you in advanced.

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Question 985947: Suppose we have the system of equations:
3x+4y=27 and 2x-5y=-28
Using Cramer'r rule, we have D=?
Thank you in advanced.

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
Suppose we have the system of equations:
3x+4y=27 and 2x-5y=-28
Using Cramer'r rule, we have D=?
=====================
|3 3 +27|
|2-5 -28|
--------------
Det = 3*(-5) - (2*3) = -15 - 6
= -21 using any method.

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