Question

If x/2+2y=15 and 2/x-4y=3, then the values of x and y are respectively

Answer 1

Step-by-step explanation:

(x+4y)/2 = 15

x+4y = 30 mulitiply 3 3 x+ 12 y =90

(2- 4 xy)/x = 3

2-4 xy = 3x

3 x + 4 xy = 2

substract this

12 y - 4 xy = 88

3 y-xy = 22

..this qn is correct

Answer 2

Answer:

The value of x = 11 and y = 19/4

Step-by-step explanation:

Given:
$\frac{x}{2} +2y=15$

$2x-4y=3$

To Find:
Value of x and y

Solution:

Let the given equations be first brought into the standard form of ax +by = c

$\frac{x}{2} +2y=15$

x + 4y = 30 .... (1)

2x - 4y = 3 ......(2)

Using the elimination method between eq (1) and (2)

Adding (1) and (2)
x + 4y +2x - 4y = 30 +3

3x = 33

x = 11

Substituting the value of x in equation (1)

x + 4y = 30

11 + 4y = 30

4y = 19

y = $\frac{19}{4}$

Conclusion:

The value of x = 11 and y = 19/4

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