Which of the following satisfies the equation x + y = 4 ?

x = 2 and y = 2

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x = 1 and y = 3

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x = 3 and y = 1

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x = 1 and y = 1

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Solution

The correct options are
A x = 2 and y = 2
B x = 1 and y = 3
C x = 3 and y = 1
Given equation is x + y = 4.

Now, checking for given options.

For x = 2 and y = 2, 4 = 4
So, the equation satisfies this option.

For x = 1 and y = 3, 4 = 4
So, the equation satisfies this option.

For x = 3 and y = 1, 4 = 4
So, the equation satisfies this option.

For x = 1 and y = 1, 2 is not equal to 4.
So, the equation does not satisfy this option

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