Fernando has been saving money to buy an e–book reader. a store has just marked down the price of its readers by 40%. each reader comes with a mail-in rebate for $25. if the reader used to cost $150, what will fernando's final price be after the markdown and rebate?

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?