Twice a certain number added to 15 is 2 less then 27, what is the number?

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)

Astudent showed the steps below while solving the inequality |x-4|< 1 by graphing.