Question

for simultaneous equations in variables x & y if Dx=49,Dy=63 & D=7,then what is the value of x
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Answer 1

Answer:

x=7

Step-by-step explanation:

ATQ

7*x=49

so, x=49/7

     x= 7

and  7*y=63

so,    y=63/7

       y = 9

hence the value of x is 7 and y is 9

but you only wanted for x....

i hope it helped you...