Question

9. I Multiply a certain number 28 add 14 to the product divide the sum by 13 and subtract 4 from the result .If I obtain twice the original number, what number did I take at first? ​

Answer 1

Answer:

The number is 7.

Step-by-step explanation:

Let the number be 'x'

$\frac{28x + 14}{13} - 4 = 2x$

$\frac{28x + 14 - 56}{13} = 2x$

$28x - 42 = 2x \times 13$

$28x - 14 = 26x$

$28x - 26x = 14$

$2x = 14$

$x = 7$

Answer 2

Answer:

above one is the right answer

Step-by-step explanation:

the answer is 7