Question

if 3x+4y=16and 3x -4y =4find the value of xy​

Answer 1

Step-by-step explanation:

3x+4y=16

3x-4y=4

_______

6x=20

x=20/6

3×20/6=10+4y=16

4y=6

y=3/2

20/6×3/2=5

Answer 2

in first question answer is x=8 y= -2

in second question answer is x=4 =2