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Applications (Word Problem)

The value of ...

Question

The value of x for which 5x + 10 = 30

A

5

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B

15

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C

3

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D

25

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Solution

The correct option is C 3
$5 x + 10 = 30 \Rightarrow 5 x = 30 - 10 = 20 \Rightarrow x = \frac{20}{5} = 4$

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