I want to know x=,y=,z=

3. solve by graphing: y = 2x + 6 x + y = -3

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.