Question

4x - y =5
5y - 4x = 7​

Answer 1

Step-by-step explanation:

4x - y = 5

4x - 5 = y ......1st eqn

5y - 4x = 7 ......2nd eqn

than,

5 ( 4x - 5) - 4x = 7

or, 20x - 25 - 4x = 7

or, 16x = 32

: x = 32/16= 2

now,

4x2 -y= 5

8 -y = 5

8 - 5= y

: y= 3 answer

Answer 2

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