Question

hikma thinks a number .when she multiples her number by 5and subtract 16 from the result.he gets the same answer as when he adds 10 to her number and multiples that result by 3. find the number​

Answer 1

Hikma's number is 23

Explanation:

To answer this question we're going to write each part as a function so that:
5n-16=x
and
(n+10)*3=x

because both functions equal x (the final number), we can set them equal to each other:

5n-16=(n+10)*3

Once we've done this, we can solve for n.

5n-16=3n+30

2n=46

n=23

Thus, the number is 23.