Question

Hoang has worked as a nurse at Springfield general hospital for 8 years longer than her friend bill. Two years ago,she had been at the hospital for twice as long. How long has each been at the hospital ?

Answer 1

bill = 6

hoang = 14

Explanation:

the following equations can be formed from the question

H = 8 + b eqn 1

h - 2 = 2b eqn 2

make h the subject of the formula in eqn 2

h = 2b + 2

2b + 2 = 8 + b

collect like terms

2b - b = 8 - 2

b = 6

h = 8 + 6 = 14