Question

solve 101+99Y=501, 99x+101Y=499​

Answer 1

2. $101 + 99y = 501 \\ 99y = 501 - 101 \\ y = \frac{4 00 }{99}$
3. $99x + 101y = 499 \\ 99x = 499 - 101y \\ x = \frac{ 499 - 11y}{99}$

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Answer 2

Answer:

y=2

Step-by-step explanation:

99x+101y=499...(1)

101x+99y=501...(2)

Adding equation (1) and (2), we get

200x+200y=1000

or x+y=5...(3)

Subtracting (1) from (2), we get

2x-2y=2

or x-y=1...(4)

Adding equation (3) and (4) , we get

2x=6

i.e. x=3

Putting the value of x in equation (3) , we get,

y=2