Question

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

Answer 1

Answer:

12.5

Step-by-step explanation:

lett the no.be x

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

=[(x*28)+14]-39=13*2x

=[(x*28)+14]-39=26x

=28x-25=26x

=28x-26x=25

=2x=25

=x=12.5