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Methods of Solving an Equation

If 2 x+3=5, t...

Question

If 2x + 3 = 5, then the value of 3x + 2 is

A

1

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B

2

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C

3

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D

5

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Solution

The correct option is D 5
Solving the given equation for x,
2x + 3 = 5
$\Rightarrow 2 x = 5 - 3$ [Transposing 3 to the other side]
$\Rightarrow \frac{2 x}{2} = \frac{2}{2}$ [Dividing both sides by 2]
$\Rightarrow x = 1$
Put the value of x in (3x + 2), we get
3(1) + 2
= 3 + 2
= 5

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