Math, asked by pratikyadav767, 7 months ago

Solve : x-2y =7

2 x-6y=0 ​

Answers

Answered by tiwary2411omjee
0

Answer:

x=21/5

y=7/5

Step-by-step explanation:

x=7-2y

2x-6y=0

2(7-2y)-6y=0

14-4y-6y=0

10y=14

y=7/5

x=7-2(7/5)

x=7-14/5

x=(35-14)/5

x=21/5

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Answered by dasj19126
1

Step-by-step explanation:

x - 2y = 7 \\ or. \:  \: x = 7 + 2y \:  \:  \:  -  -  (i) \\  \\ 2x - 6y = 0 \\ or. \:  \: 2x = 6y \\ or. \:  \: x = 3y \:   \: \:  -  - (ii) \\  \\ then. \:  \: 7 + 2y = 3y \\ or. \:  \: 3y - 2y =  (- 7) \\ or. \:  \: y = ( - 7)

In equation (i), we put y = (- 7) then,

x = 7 + 2.( - 7) \\  = 7 - 14 \\  =  - 7

x = ( - 7). \:  \:  \:  \: y = ( - 7)

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