Question

If x=a, y=b is a the solution of the equation x-y=2 and x+y =4 . The values of a and b are respectively

5 and 3

3 and 1 

3 and 5 

-1 and 3

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Answer 1

Answer:

a=3 and y=1

Step-by-step explanation:

Add both equation x-y=2 and x+y=4

the result will be 2x=6

Now x will x=6÷2

x=3

Now put the value of x in any equation of above we are putting the value in x-y=2

3-y=2, y=1

x=3, y=1

as x=a and y=b

a=3 and b= 1