Question

ng Answer Questions :
1. Twice a number increased by 8 is 20. Find the number.​

Answer 1

Answer:

Let the number be x

So the equation is

2x + 8 = 20

2x = 20 - 8

2x = 12

x = 12/2

x = 6

The number is 6

Answer 2

Answer :-

• The number is 6.

To find :-

• The number.

Solution :-

• It is given that twice a number increased by 8 is 20. We have to find the number.

Let :-

• The number be "x".

Then :-

• Twice the number will be "2x".

Increasing twice the number by 8 :-

• We get "2x + 8".

It is given that :-

• When twice a number is increased by 8, the result is 20.

Therefore,

$\longmapsto\bf2x + 8 = 20$

$\bf \longmapsto 2x = 20 - 8$

$\longmapsto \bf 2x = 12$

$\bf\longmapsto x = \dfrac{12}{ \: 2}$

$\longmapsto \underline{ \boxed{ \bf x = 6}}$

Hence :-

• The required number is 6.

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V E R I F I C A T I O N

• To check our answer, let's put 6 in the place of x and see whether LHS = RHS.

LHS

$\hookrightarrow\rm 2x + 8$

$\hookrightarrow 2 \times 6 + 8$

$\hookrightarrow 12 + 8$

$\hookrightarrow 20$

RHS

$\hookrightarrow 20$

LHS = RHS.

Hence verified!