Question

Solve the system x - 2y = -6 3x + y = -4

Answer 1

{x-2y=-6

{3x+y=-4     /*2

{x-2y=-6

{6x+2y=-8     (+)

7x=-14    /:7

x=-2

3x+y=-4

3*(-2)+y=-4

-6+y=-4

y=2

Solution:  (-2; 2)