Question

when 9 is added to two times a number, we get 67. the number is
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Answer 1

Answer:

we get the equation:

2x + 9 = 67

2x = 67-9

2x = 58

x = 58/2

x = 29

Answer 2

SOLUTION

GIVEN

When 9 is added to two times a number, we get 67.

TO DETERMINE

The number

EVALUATION

Let the required number = n

Two times the number = 2 × n = 2n

When 9 is added to 2n we get 2n + 9

So by the given condition

$\sf{2n + 9 = 67}$

Which is the required equation

We now solve it as below

$\sf{2n + 9 = 67}$

$\sf{ \implies \: 2n = 67 - 9}$

$\sf{ \implies \: 2n = 58}$

$\sf{ \implies \: n = \dfrac{58}{2} }$

$\sf{ \implies \: n = 29 }$

Hence the required number = 29

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