Given:
Time has a total of $28 after spending half of his weekly earnings on a video game and earning $10 additional dollars for mowing the lawn.
To find:
Weekly earnings at his part time job.
Solution:
Let x be the weekly earning.
He spend half of his weekly earning, i.e.,

He earns $10 additional dollars for mowing the lawn.
According to the question,



Multiply both sides by 2.

Therefore, his weekly earnings is $36.