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3 years ago

Find the solution to the equations. 2х-у=-3 х+у=0 0,0 -1,1 1,-1

Mathematics

2 answers:

Lelechka [254]3 years ago

7 0

Answer:

Option B : ( - 1 , 1 ) ==> x = -1 , y = 1

Step-by-step explanation:

2x - y = - 3 -------- ( 1 )

x + y = 0 => x = - y -------( 2 )

Substitute ( 2 ) in ( 1 ) : 2x - y = - 3

2( - y ) - y = - 3

- 2y - y = - 3

- 3y = - 3

y = 1

Substitute y in ( 2) : x + y = 0

x + 1 = 0

x = - 1

kobusy [5.1K]3 years ago

3 0

It’s 0,0. The correct answer!

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