Consider the expression. – (x + 3) – 2(4x – 3)

Which procedure correctly simplifies the expression?

A.
Step 1: –x – 3 – 8x – 6

Step 2: –9x – 6

B.
Step 1: –x + 3 – 8x + 6

Step 2: –9x + 9

C.
Step 1: –x – 3 – 8x + 6

Step 2: –9x + 3

D.
Step 1: –x – 3 – 8x – 3

Step 2: –9x – 6

What properties allow transformation to be used as a problem solving tool

Lindsay used two points, (x, y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

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)