Question

3 times the difference of a number and 1 is nine more than the same number. Find the number.

Answer 1

Answer: 6

Step-by-step explanation:

3 (x-1) = x + 9

3x - 3 = X + 9

3x - x = 9 + 3

2x = 12

x = 12/2

x = 6

Answer 2

The correct answer will be "n = 6". A complete solution is provided below.

Let,

The number be "n".

According to the question, the expression will be:

→  $3(n-1)=9+n$

→     $3n-3=9+n$

By adding "3" both sides, we get

→  $3n-3+3=9+n+3$

→              $3n=12+n$

By subtracting "n" from both sides, we get

→        $3n-n=12+n-n$

→               $2n=12$

→                 $n=\frac{12}{2}$

→                 $n = 6$

Thus the above is the appropriate answer.

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