Question

Solve the system by the method of elimination.

Answer 1

work is shown and pictured

Answer 2

infinite solutions along the line -3x+y = 6

Explanation:

9x -3y = -18

-3x + y = 6

Multiply the second equation by 3

3( -3x+y) = 3*6

-9x +3y = 18

Add this to the first equation

9x -3y = -18

-9x +3y = 18

------------------------

0 + 0 = 0

This means it is the same line which means there are infinite solutions along the line -3x+y = 6