#### Answer

The solution of this equation is x = 450.

#### Work Step by Step

0.09x + 0.1(2x) = 130.5
Use the distributive property to obtain:
0.09x + 0.2x = 130.5
0.29x = 130.5
Divide both sides by 0.29:
x = 450
The solution of this equation is x = 450.