Question

13x+16y=20
16x+13y=9
​

Answer 1

Answer:

x=-116/87

Hope it is helpful to you

Answer 2

Answer:

x= 7/3

y = -4/3

Explanation:

13x + 16y = 20

16x + 13y = 9

now add both ,

29x + 29y = 29 , now divide by 29,

X + Y = 1 (eq1)

now subtract both ,

X - Y = 11/ 3 (eq2)

Now add eq1 & eq2,

so , we'll get

x = 7/3

y= -4/3

Hope it's helpful!!!