Answer:
x = -9
Step-by-step explanation:
let the number = x
So x ÷ -3 = x + 12
Mulitply both sides by -3: x = -3x -36
Add 3x to both sides: 4x = -36
Divide both sides by 4: x = -9
Answer:
7 g.
Step-by-step explanation:
7g = 7000 mg
(Hard to put it in words for me so here is a picture)
Or you can use point-slope form (

) and insert the slope of -2 and the point (3,6) like this:

And simplify if needed.
Have a great day!