Question

After a discount of 10%, the price of a pair of jeans, including tax, was $69.62. The following equation can be used to find x, the price of the pair of jeans without the discount.

x - 0.1x + 0.07(x - 0.1x) = 69.62

What is the price of the pair of jeans without the discount?

Answer 1

first multiply the entire equation (both sides) by 100 to get everything out of decimal form.

100(x-0.1x+0.07(x-0.1x)=69.62)

100x-10x+7(x-0.1x)=6962

90x+7x-0.7x = 6962

you can multiply by ten again to get that last one out of decimal form

10(90x+7x-0.7x = 6962)

900x + 70x - 7x = 69620

963x = 69620

divide the 963 by both sides

x = 72.29

Answer 2

thank you so mach!! that helped a lot!

Answer 3

No problem. Glad to help