Question

x+y=3 ; 2x+y=1
by using elimination method.
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Answer 1

⇒ x + y = 3

2x + y = 1

- - -

⇒ - 2x = 2

⇒ x = 2/-2

⇒ x = -1

Putting the value of x in one equation:

⇒ x + y = 3

⇒ -1 + y = 3

⇒ y = 3 - (-1)

⇒ y = 3 + 1

⇒ y = 4

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