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Quadratic Equations

If 3,1 is...

Question

If $(3, 1)$ is a solution of the equation $3 x + 2 y = k,$ find the value of $k$

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Solution

We have
$(3, 1$ is the solution of the equation $3 x + 2 y = k$
$\begin{matrix} N o w, K = 3 (3) + 2 (1) = 9 + 2 = 11. H e n c e, t h e v a l u e o f k i s 11. \end{matrix}$

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