Which ordered pair (x,y) is a solution to the given systems of linear equations? 3x+3y=-3 and -2x+y=2

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asked Apr 4, 2018 204k views

2 Answers

Jeroen Heier · Answer 1 · 2018-04-07T18:29:03+0000

3x+3y=-3
divide both sides by 3 for ease
x+y=-1

now eliminate x's
multiply that equation by 2 and add to other one

2x+2y=-2
-2x+y=2 +
0x+3y=0

3y=0
y=0

x+y=-1
x+0=-1
x=-1

(x,y)
(-1,0)

Which ordered pair (x,y) is a solution to the given systems of linear equations? 3x+3y=-3 and -2x+y=2

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