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0 votes
590 views
in Linear Equations by (33.5k points)

For simultaneous equations in variables x and y, Dx = 49, Dy = – 63, D = 7 then what is x?

(a) 7 

(b) -7

(c) 1/7

(d) -1/7

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1 Answer

+1 vote
by (34.1k points)

Correct answer is

(a) 7

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