if you subtract 12 from my number and multiply the difference by -6 the result is -90 what is my number

your number is ‐15

hope its right

n must be 27

Step-by-step explanation:

Let this number be x.  Then -6(n - 12) = -90.

Dividing both sides by -6 yields n - 12 = 15.

Add 12 to both sides.

Then n must be 27.

Check:  subtract 12 from 27; this yields 15.  Now multiply this result by -6.  The result is -90, which was expected.

ok then what happened.