If -x-2- - 3- then the value of 3x - 2 is-a- 20 -b- 11 -c- 13-2 -d- 8 - Maths Q-A

Explanation for the correct option.It is given that, x/2=3.Multiply both sides by 2.⇒ x=6Substitute the value of x in the given expression.3x+2=3× 6+20ex0ex⇒ 3x ...

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Standard VIII

Mathematics

Solving Equations with Variables on Both Sides

If (x/2) = 3,...

Question

If $\frac{x}{2} = 3$ , then the value of $3 x + 2$ is

$20$

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$11$

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$\frac{13}{2}$

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$8$

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Solution

The correct option is A
$20$

Explanation for the correct option.
It is given that, $\frac{x}{2} = 3$ .
Multiply both sides by $2$ .
$\Rightarrow x = 6$
Substitute the value of $x$ in the given expression.
$3 x + 2 = 3 \times 6 + 2 \Rightarrow 3 x + 2 = 18 + 2 \Rightarrow 3 x + 2 = 20$ .
So, the value of $3 x + 2$ is $20$ .
Hence, option $A$ is the correct answer.

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If x2=3, then the value of 3x+2 is

The correct option is A 20Explanation for the correct option.It is given that, x2=3.Multiply both sides by 2.⇒x=6Substitute the value of x in the given expression.3x+2=3×6+2⇒3x+2=18+2⇒3x+2=20.So, the value of 3x+2 is 20.Hence, option A is the correct answer.

If $\frac{x}{2} = 3$ , then the value of $3 x + 2$ is