5 added to two times of a number gives 45. Find the number.

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Solution

The correct option is B 20
Let the number be $x$ .
Twice of the number = $2 x$
Now according to the problem, $2 x + 5 = 45 \Rightarrow 2 x + 5 - 5 = 45 - 5 \Rightarrow 2 x = 40 \Rightarrow \frac{2 x}{2} = \frac{40}{2} \Rightarrow x = 20$
Hence, the number is 20.

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5 added to two times of a number gives 45. Find the number.

The correct option is B 20Let the number be x. Twice of the number = 2x Now according to the problem, 2x + 5 = 45⇒ 2x + 5 − 5 = 45 −5 ⇒ 2x = 40⇒ 2x2= 402⇒ x = 20 Hence, the number is 20.

The correct option is B 20
Let the number be $x$ .
Twice of the number = $2 x$
Now according to the problem, $2 x + 5 = 45 \Rightarrow 2 x + 5 - 5 = 45 - 5 \Rightarrow 2 x = 40 \Rightarrow \frac{2 x}{2} = \frac{40}{2} \Rightarrow x = 20$
Hence, the number is 20.