word problem solve

Question

Two mechanics worked on a car. The first mechanic worked for 10 hours, and the second mechanic worked for 15 hours. Together they charged a total of $2850.00 . What was the rate charged per hour by each mechanic if the sum of the two rates was $225. per hour?

Answer 1

One mechanic earned d dollars per hour

The other mechanic earned 225 - d dollars per hour

12d + 10(225 - d) = 2850

Can you solve for d and answer?