Which of the following equations is a solution of x = 7, y = 3?

x+y = 4

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x+3y = 16

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x-y +4 = 0

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x+y = 7

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Solution

The correct option is B
x+3y = 16

The solution of a linear equation must be able to satisfy the equation. The given values of x and y are 7 and 3 respectively.
Among the given equations, only the equation x + 3y is able to satisfy the equation.
$\Rightarrow 7 + 3 (3) = 16$
Thus, option B is the correct answer.

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