Answer:
h = -21 ft
Step-by-step explanation:
Think of this as a vertical number line.
If sea level is zero and the seagull is flying 21 ft above the surface, the bird's height
h = +21 ft
If the fish is 21 ft below the surface, it is swimming at a level
h = -21 ft.
or 15.231546
just look at picture
Hope this helps :)
(7x+3)+(-x-5)=-16
or,7x+3-x-5=-16
or,6x-2=-16
or,6x=-16+2
or,6x=-14
or,x=-14/6
hence x=-14/6
where is the problem here?