How to do this?

Question

In a 30% off sale, you pay $35.00 for an article. What is its original price ?


...well, i know that the original price = x

Answer 1

Let the original price be x
After discount it becomes x - 30% of x = x - 0.3x
now according to question x - 0.3x = 35
0.7x = 35
x = 35/0.7 = 350/7 = 50
Therefore the original price was $50

Answer 2

you convert the 30% to a decimal by multiplying it by 100.
so,
30% (100)= .30
then, you know that x= the original price, so if you take 30% of the original price you get the $35 you paid for the article. you take 30% of an article by multiplying 30% by the price and subtracking that answer by the price itself. therefore,
x - .30x = 35.00
and then you solve from there.

Answer 3

$35.00=.70 X, so
X=35/.70
X= $50.00

Answer 4

let x be the origional price

x - .30x is the price after reducing 30%, which is 35.00

so x - .30x = 35
.70x = 35
x = $50.00

Answer 5

x = the original price

x * 0.70 = $35

x = $35 / 0.70 = $50.00

Answer 6

0.70x = 35

x = 50.
.