What does the equation for this problem look like

Question

A salesman earned 5% commission as a trainee and 8% after a promotion to associate. His annual sales were $673,874. His total commission for the year was $45,006.52. What was his sales as a trainee, what were his sales as an associate.

Answer 1

t represents his sales as a trainee

673874 - t represents his sales as an associate

 

0.05t + 0.08(673874 - t) = 45006,52

 

Can you solve for t and answer?