With the Brainly help you've gotten in the last 15 minutes or so,
you should be able to do this one now.
The mystery number . . . . . . . M
Half of it . . . . . . . . . . . . . . . . 1/2 M
Half of it decreased by 8 . . . 1/2 M - 8
You said that's 3 .
So the equation you have to solve is
1/2 M - 8 = 3
Add 8 to each side: 1/2 M = 11
Multiply each side by 2 : M = 22
This is easier than the last one we ( I ) did.
