Answers

2014-05-23T12:38:37+05:30
Given 
99x+101y = 499------------> 1
101x+99y = 501-----------------> 2 
multiply equation 1 with 101 
then we get  (99x+101y = 499)101
⇒9999x+10201y=50399----------------> 3
Now let us consider 2nd equation 
multiply 2nd equation by 99 
then we get (
101x+99y = 501)99
⇒9999x+9801y=49599---------------> 4
solving 3 & 4 we get 

400y = 800
⇒y = 2 
Now substitute y = 2 in equation 1 
then we get the value of x 
99x+101*2=499
99x+202=499
99x=297
x=3
1 4 1
  • Brainly User
2014-05-23T12:41:22+05:30
99x+101y=499
101x+99y=501
combining both equations we get
99x+101x+99y+101y=499+501
200x+200y=1000
200x=500
200y=500
x=5/2
y=5/2
1 4 1