Question

solve x-y=1, x-3y=4. ​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

X=-1/2 and y=-3/2

Step-by-step explanation:

X-y=1 ; x=1+y

Putting the value of x in eq2, we obtain

X-3y=4 ; (1+y)-3y=4 ; -2y=4-1 ; -2y=3 ; y= - 3/2

Similarly, putting the value of y in eq1, we get

X= 1+y ; x=1+(-3/2) ; x=1-3/2 ; x=2-3/2 ; x=-1/2

X=-1/2 & Y-3/2