Question

99x+10y=499,101x+99y=501 solve by cramers rule​

Answer 1

Step-by-step explanation:

99x + 101y = 499     (1)

101x + 99y = 501     (2)

Adding equations (1) and (2), we get.

200x + 200y = 1000

Or, x + y = 5    (3)

Subtracting (1) from (2), we get,

2x - 2y = 2

Or, x - y = 1     (4)

Adding (3) and (4), we get,

2x = 6 ⇒ x = 3

Putting the value of x in (3), we get,

y = 2

Mark as brainliest pls !!

Answer 2

Answer:

Given equation are

99x+101y=499−−−(1)

101x+99y=501−−−(2)

Adding (1) and (2)

200x+200y=1000

∴ x+y=5−−−(3)

Subtracting (1) from (2)

2x−2y=2

∴ x−y=1−−−(4)

Adding (3) and (4)

2x=6 ∴x=3

Putting x=3 in equation (4)

3−y=1∴ y=2

∴ y=2,x=3

Step-by-step explanation:

plz brainlist answer karo