MCQ
Mark $(\checkmark)$ against the correct answer in the following:
If $\frac{1}{3}\text{x}+5=8,$ then $\text{x}={}?$
  • A
    $3$
  • B
    $6$
  • $9$
  • D
    $12$

Answer

Correct option: C.
$9$

$\Rightarrow\frac{1}{3}\text{x}+5=8$
$\Rightarrow\frac{1}{3}\text{x}+5-5=8-5$ [Substracting 5 from both sides]
$\Rightarrow\frac{1}{3}\text{x}\times3=3\times3$ [Multiplying both sides by $3]$
$\text{x}=9$

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