Which of the following equations have x = 7, y = 3 as solution?

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 the linear equation should satisfy the equation. The given values of x and y are 7 and 3 respectively.

Among the given equations, only the equation x + 3y = 16 is able to satisfy the equation.

$\Rightarrow 7 + 3 (3) = 16$

Hence $x = 7 a n d y = 3$ is the solution of x + 3y = 16.

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