Question

If x=a, y=b is the solution of the pair of equation x-y=2 and x+y=4 then what will be value of a and b

Answer 1

Answer:

if x=a,y=b

are solutions of x-y=2

x+y=4

substitute

a-b=2

a+b=4

2a=6

a=3

a-b=2

3-b=2

b=1