Question

For simultaneous equation in variables 'x' and 'y' Dx = 56 , Dy = 77 , D = 7 then what is X?
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Answer 1

Step-by-step explanation:

Given :- Dx = 56 , Dy = 77 , D = 7

By Cramer's Rule,

x= Dx = 56 = 8

D 7

x = 8

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