The equations of four lines are given. Identify which lines are parallel. Line 1: y=13(x+6) Line 2: y−6=3x Line 3: y=−3(x−4) Line 4: 3y+18=x

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)