Mr. McDonald offers the tractor salesman $2000 for a used tractor. This offer includes 6% sales tax. If the salesman accepts the offer, what is the cost of the tractor, before tax

The salesman will get $1,880 with out the 6% tax

For this problem we must backtrack, and deduct the sales tax!

So lets make an equation to solve.

original price = final price / (1 + sales tax rate) so

op = 2000 / 1.06 = 1886.80

lets see if this is correct!

1886.80 * 0.06 = 113.208 < - tax

1886.80 + 113.208 = 2000