Question

Find simutaneous equation in variable x and y. Dx=54, Dy= -81, D= -9 then x=?


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Answer 1

Answer:

Step-by-step explanation:

x = Dx/D

x = 54/-9

x = 6/-1

x = - 6

y = Dy/D

y = -81/-9

y = 9

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Answer 2

Answer:

Given : Dx=54, Dy= -81, D= -9

To find : the value of x.

Solution :

Using Cramers Rule,

x = Dx/ D

x = 54/ (-9)

x = - 6