Solve the system using the method of elimination: 3x – 4y = -18 2x – y = -7 a. Dependent (many solutions) b. (-2, 3) B. (-2,3) c. Inconsistent (no solution) d. (-2, -3)

Answer 1

3x-4y =-18

2x-y =-7

multiply by 4 then subtract 1st equation

8x-4y =-28

3x -4y=-18

5x =-10

x=-2

y=2x+7=2(-2)+7 =-4+7=3

x=-2, y=3

Only one solution

B) (-2,3)