it is a word problem linear equations

Question

Carrie has $20 in the bank. Allison has $50 in the bank. They both started working at the snow cone shack. Carrie earns $8 an hour and Allison earns $8 an hour. After how many hours will Carrie and Allison have the same amount of money?

Answer 1

20 + 8h = 50 + 8h

20 =50

this is impossible

although let h = infinity, then they slowly approach the same amount of money

infinity +20 = infinity + 50

a paradox of the mathematics of infinity.

infinity plus any finite number = infinity plus any other finite number