SOLUTION: At the end of the day, a storekeeper had $1070 in the cash register, including both the sale of good and the sales tax of 7%. What amount of sales tax had been collected?

Question 442781: At the end of the day, a storekeeper had $1070 in the cash register, including both the sale of good and the sales tax of 7%. What amount of sales tax had been collected?
Answer by rwm(914) (Show Source): You can put this solution on YOUR website!
x+.07x=1070
1.07*x=1070
x=1000
1070-1000=$70 sales tax