Solve the system of equations - x-2y=0 and - x+y=6 by combining the equations

x=-4 and y=10

Step-by-step explanation:

Use the second equation to make y=x+6

sub y=x+6 into the first equation

-x-2 * (x+6) = 0

-x-2x-12=0

-3x-12=0

3x=-12

x=-4

Now sub x=-4 into the second equation

- (-4) + y=6

y=6+4

y=10