Question

please give me the answers of that 3 question​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

x = 2 , y = -2

Step-by-step explanation:

Given ---> 3 x - 5 y = 16

x - 3 y = 8

To find ---> Value of x and y

Solution--->

3 x - 5 y = 16 ..............(1)

x - 3 y = 8 .................( 2 )

We solve it by substitution method

x - 3 y = 8

=> x = 3 y + 8

Putting x = 3 y + 8 in equation (1)

3 ( 3 y + 8 ) - 5 y = 16

=> 3 × 3 y + 3 × 8 - 5y = 16

=> 9 y + 24 - 5 y = 16

=> 4 y + 24 = 16

=> 4 y = 16 - 24

=> 4 y = - 8

=> y = -8 / 4

=> y = - 2

Putting y = -2 in x = 3 y + 8 we get

x = 3 y + 8

=> x = 3 ( - 2 ) + 8

=> x = -6 + 8

=> x = 2