Question

The sum of 7 times a number and 23 is equal to 79.

What is the number?

Answer 1

Answer:

7x + 23 = 79

7x= 79-23

7x=56

x=56\7

x=8

This is your answer

Answer 2

The number is 8

Given :

The sum of 7 times a number and 23 is equal to 79.

To find :

The number

Solution :

Step 1 of 2 :

Form the equation to find the number

Let the required number is x

7 times the number = 7x

Now sum of 7 times the number and 23 = 7x + 23

By the given condition

$\displaystyle \sf 7x + 23 = 79$

Step 2 of 2 :

Find the number

$\displaystyle \sf 7x + 23 = 79$

$\displaystyle \sf{ \implies }7x = 79 - 23$

$\displaystyle \sf{ \implies }7x = 56$

$\displaystyle \sf{ \implies }x = \frac{56}{7}$

$\displaystyle \sf{ \implies }x = 8$

Hence the required number is 8

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