Question

One of the zookeepers solved to find Bernard's speed

when he is, healthy using the equation:
x - 41.5 = 13.5.
The other Zookeeper said that to solve for Bernard's
speed when he is healthy, they must use the equation:
41.5 + 13.5 = x.
Which zookeeper is correct? Explain.

Answer 1

Well both zookeepers are correct but the second zookeepers answer was more accurate.

Explanation:

The first zookeeper gave the equation :

`x - 41.5 = 13.5`

So , In order to find Benards speed which is denoted as x , we would still have to collect like terms to isolate x.

The second zookeeper gave the equation :

`41.5 + 13.5 = x`

In this equation the zookeeper had already isolated x so, only simple addition was needed to find Bernard's speed.

This equation is easier to solve.

Answer 2

The second zookeeper is correct you need two answers together to get x