Question

3. If x+y=4 and 2x-5y=1 then
what is the value of x and y?
*​

Answer 1

Answer:

the value of x is 3 and y is 1

Step-by-step explanation:

x + y = 4 ____(1)

2x - 5y =1 ____(2)

multiplying equation (1)by 5

5x + 5y =20____(3)

adding equation (2)&(3)

2x - 5y = 1

+5x + 5y =20

___________

7x. = 21

{ x=3 }

putting this value in equation (1)

x + y = 4

3 + y = 4

y= 4 -3

{y = 1}

The value of x is 3 and y is 1

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