Question

Find the value of k, if x = 1, y = 2 is a
solution of the equation 2x + 3y = k.
А.
5
В.
6
С.
7
D.
8​

Answer 1

$\: \: \: \: \: \: 2x + 3y = k \\ 2(1) + 3(2) = k \\ \: \: \: \: \: \: \: \: \: \: \: 2 + 6 = k \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: k = 8$

Answer 2

Correct answer

D.8

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