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Finding Solution of an Equation by Trial and Error Method

If the value ...

Question

If the value of $x$ is 4, then the value of $3 x + 4$ is.

A

8

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B

12

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C

16

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Solution

The correct option is C 16
Given: $x = 4$
$\Rightarrow 3 x + 4 = 3 (4) + 4$
$= 12 + 4$
$= 16$

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Finding Solution of an Equation by Trial and Error Method

Standard VI Mathematics

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