Question

which pair of linear equations have x=2 and y= -3
A) X+Y=-1 , 2X-3Y=-5
B) 2X+5Y=-11 , 4X+10Y=22
C) 2X-Y=1 , 3X+2Y=0
D) X-4Y-14=0 , 5X-Y-13=0​

Answer 1

Step-by-step explanation:

The system of equations x – y = 5 and 2x – y = 7 has the unique solution x = 2 and y = –3.

There are infinite pair of system of equations which have the unique solution x = 2 and y = –3.

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Answer 2

x-4y-14=0 , 5x-y-13=0

Step-by-step explanation:

x-4y-14=0

2-4(-3)-14=0

2-(-12)-14=0

2+12-14=0

14-14=0

5x-y-13=0

5(2)-(-3)-13=0

10+3-13=0

13-13=0

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