Question

f x = a, y = b is the solution of the pair of

equations x – y = 2 and x + y = 4, then the

respective values of a and b are

(a) 3, 5 (b) 5, 3

(c) 3, 1 (d) -1, -3​

Answer 1

Answer:

c) is the correct answer....

Answer 2

Answer:

x=3 and y=1 option (c)

Step-by-step explanation:

• let x-y=2.......eqn 1st
• and x+y=4.....eqn 2nd
• in equation 1st
• x=2+y......eqn 3rd
• putting the value of x in equation 2nd
• 2+y+y=4
• 2+2y=4
• 2(1+y)=4
• 1+y=4/2
• 1+y=2
• y=2-1=1
• now putting the value of y in equation 3rd
• x=2+1
• x=3

hope this may help u