Question

1uponx +1upony=12 3uponx-2upony=1
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Answer 1

Here is the answer....

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Answer 2

Step-by-step explanation:

1/x + 1/y = 12 ......(i)

3/x - 2/y = 1 ......(ii)

let 1/x = a

let 1/y = b

a+ b= 12 ......(iii)

3a - 2b = 1 ......(iv)

LCM of 1 and 2 = 2

for making (b) = 2b multiply by 2 in (iii)

(a + b = 12) * 2

2a + 2b = 24 ......(v)

from (iv) and (v)

add (v) and (iv)

(3a - 2b = 1) + (2a + 2b = 24)

5a = 25

a = 5

putting value of a in (iii)

5 + b = 12

b = 12 -5

b = 7

we have assumed,

a = 1/x

1/x = 5

5x = 1

x = 1 / 5

we have assumed,

b= 1/y

1/y = 7

7y = 1

y = 1/7