Question

Eli took the fleet of 8 vans for oil changes. All of the vans needed windshield wipers which cost $24 per van. The total bill was $432. Write an equation to find out what each oil change cost. Solve the equation.

Answer 1

We can define the cost of an oil change as x.
So, we have 8x.
There is also the added cost of $24 for each van's wipers.
This gives us 8x+24(8)=432 for the total cost.
Using the distributive property, this becomes 8x+192=432.
Afterwards, subtract 192.
8x=240
Divide by 8:
x=30
Each oil change therefore costed $30.

Answer 2

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