Question

find the values of a if x=2,y=1;in a solution of the equation 3x-y=9
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Answer 1

Answer:

3x-y=9

3x=9+y

3x=9+1

3x=10

x= 10/3

Putting The Value xin equation 1

3x-y=9

3×10/3-y =9

three se three cancle ok

10-y=9

10 shift right side

-y=9-10

-y = -1

minus se minus cancle

y= 1

So, X= 10/3 , Y= 1.

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