Question

solve by cramer's rule 6x-9y=5, 4x-6y=4​

Answer 1

Answer:

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Step-by-step explanation:

sol:- Given:- A=6,4 B= -9,-6 C=5,4

D= A1 B1

A2 B2

:. 6 -9 =6x(-6) - (-9)x4= -36+36 =0

4 -6

:. (D=0)

DX= C1 B1

C2 B2

:. 5 -9 =5x(-6) - (-9)x4 = -30+36=6

4 -6

:. (DX=6)

DY= A1 C1

A2 C2

:. 6 5 = 6x4 - 4x5 = 24-20=4

4 4

:. (DY=4)

X=DX/D = 6/0=0

:. (X=0)

Y=DY/D =4/0=0

:. (Y=0)