Question

Q6) If x=a, y=b is the solution of the pair of equation 2x-y=4 and
3x+y=11 then what will be value of a and b
a) 2,1
b) 3,1
c) 4,6
d) 3,2​

Answer 1

2x-y=4

3x+y=11

5x=15

x=3

2×3-y=4

6-y=4

y=2

x=a

y=b

a = 3

b = 2

3,2

Option d

:-)

Answer 2

Answer:

d) 3,2

Step-by-step explanation:

Here, 2x-y=4

⇨2a-b=4--------(1)

And, 3x+y=11

⇨3a+b=11--------(2)

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

5a=15

⇨a=3

From (2),

9+b=11

⇨b=2

∴a=3 & b=2