The submarine is underwater. it’s position is 645 feet below sea level. it rises in the water 100 feet and then descends 100 feet what integer represents the change in the submarine’s position?

Hello!

This submarine rose 100 feet (+100) and then descended (-100). Usually in an equation this would cancel out and make 0. Therefore, our answer is 0.

I hope this helps!

As per the problem

The submarine is underwater. It’s position is 645 feet below sea level.

It rises in the water 100 feet and then descends 100 feet.

Since the submarine again came back to original position by covering the same distance. So there is no change in the submarine's position.

Hence the integer representing the change in the Submarine’s position is 0

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation: