Question

The teacher said,"I have thought of a number. If you add 7 to 3 times the number, you get 31. what number have I thought of?"can you answer the teacher's questions? ​

Answer 1

Answer:

The no. is 8.

Step-by-step explanation:

Let the no. be x

3x+7=31

=> 3x=31-7

=> 3x=24

=> $x=\frac{24}{3}$

=> x=8

Therefore, the no. is 8.

Hope it helps you.

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Answer 2

Question:

The teacher said,"I have thought of a number. If you add 7 to 3 times the number, you get 31. what number have I thought of?"can you answer the teacher's questions?

Ànswer:

Let the number be x

The teacher added 7 to thrice of it..

✔And she got 31

Then the equation will be:

$\large{ \mathrm{ \implies{3x + 7 = 31}}} \\ \large{ \mathrm{ \implies{3x = 24}}} \\ \large{ \mathrm{ \implies{x = \frac{24}{3} }}} \\ \large{ \mathrm{ \implies{x = 8}}}$

The teacher thought of number which is:

$\huge{ \boxed{ \bold{ \red{x = 8}}}}$