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Linear Equation in Two Variables

If 2, 0 is ...

Question

If $(2, 0)$ is a solution of the linear equation $2 x + 3 y = k$ , then what is the value of k?

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Solution

$\begin{matrix} 2 x + 2 y = k (2, 0) i s s o l u t i o n o f t h i s e q u a t i o n p o i n t (2, 0) s a t i s f y t h e e q u a t i o n 2 x + 2 y = k 2 \times 2 + 2 \times 0 = k 4 + 0 = k ∴ k = 4 A n s . \end{matrix}$

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