Question

if the system of equation x minus y equal to 1 X + y equal to 2 has unique solutions then​

Answer 1

Answer:

x = 3/2 y= 1/2

Step-by-step explanation:

x-y= 1

x+y = 2

Given that the equations have a unique solution which can be easily proved by a1/a2 ≠b1/b2

Solving both the equations. First by adding them.

2x = 3

x= 3/2

Subtracting first from 2

2y = 1

y =1/2

Answer 2

if the system of equation x minus y equal to 1 X + y equal to 2 has unique solutions thenGiven equations are

x+y=1

x+ky=5

⇒x=2,y=1

Putting x and y value in x+ky=5

⇒2+k=5

⇒k=5−2

⇒k=3

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