Question

2. If x + y = 3 and x - y = -1, then the value of x is

1 point

2

3

1

4

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Answer 1

Answer:

X + y = 3

X - y = - 1

__________ adding both equations

2X = 2

X = 1

Step-by-step explanation:

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Answer 2

Answer:

$x + y = 3............(1) \\ x - y = - 1...........(2) \\ adding \: equation \: (1) \: and \: (2) \\ \: \: \: \: \: \: x + y = 3 \\ + \\ \: \: \: \: \: x - y = - 1 \\ ....................... \\ 2x \: \: \: \: \: \: \: \: \: \: \: \: = 2 \\ so. \: \: \: \: x = \frac{2}{2} \\ therefore \: x = 1$

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