Question

For simultaneous equations in X and y . If Dx= -66 , Dy= -99 and D= 33 find the value of x

Answer 1

Answer:

Dx=-66

given D= 33,then

33x=-66

x=-66/33

x= -22

again,Dy=-99

given D=33

33y=-99

y=-99/33

y= -33

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X=-22 , y= -33

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