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Solving Equations Using Method of Substitution

The value of ...

Question

The value of $k$ if the point $(1, 3)$ passes through $2 x + 5 y = k$

A

17

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B

18

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C

16

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D

20

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Solution

The correct option is A 17
'The point is $(1, 3)$
The equation is $2 x + 5 y = k ⟹ 2 (1) + 5 (3) = k k = 17$
'

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