Question

With optional equipment, an automobile cost $9120. If the cost of the basic car is $120 more than 4 times the price of the optional equipment, what was the cost of the basic car?

Answer 1

The cost of the Basic car `=$6750`

Explanation:

The cost of the car with optional equipment `=$.9120`
The cost of the optional equipment `$.x`
Then the cost of the car is `=4x+120`

`4x+120=9120`
`4x=9120-120=9000`
`x=9000/4=2250`

The cost of the optional equipment `=$2250`

The cost of the Basic car `=9000-2250=$6750`