MATH WORK HELP PLZZZ

Question

After a 7% reduction, you purchase a new computer monitor for $279. What was the original price of the computer monitor?

A) Write an equation that can be used to solve this question. Use x as the original cost and write any percentage in decimal form.

B) Solve your part [A] equation for x to find the original price of the computer monitor.

Answer 1

Original price = 279 + 0.07(Original price) Let x equal original price

Get Original price on one side of the equation x = 279 + 0.07x

Original price - 0.07(original price) = 279 x - 0.07x = 279

Factor out Original price

Original price (1 - 0.07) = 279 x(1-0.07) = 279

or

Original price (0.93) = 279 x(0.93) = 279

Divide both sides of the equation by 0.93 x = 279/0.93

then Original price = 279/0.93

Original price = $300 x = $300

Answer 2

(.97)x = 279

x = 287.628865979 = 287.63

Think about it like this:

7 percent OFF is 93 percent OF

OF means multiply