Question

x+y=10. 10y+x=2(10x+y) then what is the value of x and y​

Answer 1

Answer:

simple

Step-by-step explanation:

first you put this question in form of lonkar equation and two variables and solve it by eliminating by equating the coefficient method

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Answer 2

Answer:

x=3 & y=7

Step-by-step explanation:

x+y=10.....(i)

10y + x = 20x + 2y - 1

20x + 2y -10y - x = 1

19x -8y = 1......(ii)

multi eqn (i) by 8 ,

8x + 8y = 80.....(iii)

adding (ii) & (iii)

27x = 81

"x = 3"

putting x= 3 in (iii)

24 + 8y =80

8y = 80 - 24

8y = 56

"y=7"