Question

if Dx=-15,D=3 are value of determinant for certain simultaneous equation in x,then value of x is_________.​

Answer 1

Answer:

-5

Step-by-step explanation:

3 × -5 = -15

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Answer 2

Answer:

-5

Step-by-step explanation:

given

D=3

Dx=-15

x=-15/D

x=-15/3

x= -5

hence your answer is proved