2x + y = 6

y = x-3

Solve for x and y

x = 3, y=0

Step-by-step explanation:

2x + y = 6

y = x-3

Substitute the second equation into the first

2x + x-3 = 6

Combine like terms

3x-3 = 6

Add 3 to each side

3x-3+3 = 6+3

3x = 9

Divide each side by 3

3x/3 = 9/3

x = 3

Now we need to find y

y = x-3

y = 3-3=0

y=0