Question

15. Solve the following linear pair of equation.
তলৰ ৰৈখিক সমীকৰণযােৰ সমাধান কৰা ।
x+y=5, x-y=13
​

Answer 1

Step-by-step explanation:

Given:-

the following linear pair of equations :-

x+y=5, x-y=13

To find:-

Solve the given linear pair of equations.

Solution:-

Given pair of linear equations in two variables are

x+y=5 ------------(1)

x-y=13------------(2)

On adding the equations (1)&(2) then

x + y = 5

x - y = 13

(+)

_________

2x + 0 = 18

__________

=> 2x = 18

=> x = 18/2

=> x = 9

On Substituting the value of x in (1)

9+y = 5

=> y = 5-9

=> y = -4

The value of x = 9

The value of y = -4

Answer:-

The solution for the given problem is ( 9, -4 )

Check:-

If x = 9 and y = -4 then

LHS of (1)

=> 9+(-4)

=> 9-4

=> 5

=> RHS

LHS = RHS is true for (9,-4)

LHS of (2)

=> 9-(-4)

=> 9+4

=> 13

=> RHS

LHS = RHS is true for (9,-4)

Used formula:-

• Elimination method

Answer 2

Answer:

cheak if the pair eqn x-2y +5 =0 and -3x -6+1=0 is consistent or inconsistent