Question

(2) For a simultaneous equation in x and y, D = 25, D = 5 and D, = 50. Hence find the value of x. (A) 25 (B) 50 (C) 10 C (D) 5 ) ​

Answer 1

Dx=25

Dy=50

at D=5

⇒5x=25

⇒x=525=5

5y=50

⇒y=550=10

⇒x=5.

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