How many miles did he drive that truck?

Josh rented a truck for one day. There was a base fee of $16.95, and there was an additional charge of 82 cents for each mile driven. Josh had to pay $185.87 when he returned the truck. For how many miles did he drive the truck?

m = number of miles he drove the truck 

(82 cents per mile) x (number of miles driven) + (base fee of 16.95) = (total of 185.87)

0.82m + 16.95 = 185.87   {substituted given values into formula}
0.82m = 168.92   {subtracted 16.95 from each side}
m = 206   {divided each side by 0.82} 

he drove the truck 206 miles

- Algebra House