Question

If (2x+y,x-3y)=(15,13) then find (x,y)

Answer 1

Step-by-step explanation:

2x+y=15------(1)

x-3y=13------(2)

multiplying eqn 2 by 2

we get

2x-6y=26------(3)

subtracting eq 1 and 3 we get

7y=-11

y=-11/7

putting value of y in eqn 1

2x-11/7=15

2x=15+11/7

2x=105+11/7

2x=116/7

X=58/7

Answer 2

Answer:(58/7, -11/7)

Step-by-step explanation:

As both are equal so

2x + y = 15

x - 3y = 13

Equating these equations we get

2(13+3y) +y = 15

7y = 15-26

y = -11/7

So putting it in equation we get

x= 58/7

Hope you get the answer

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