Substitution

x = y+6

y = - 2-x

X = - 2-x+6

2x=4

x=2

y=-2-2

y=-4

Let us solve this by substitution;

x = y + 6

y = - 2 - x

Now, we substitute the value of y in first equation. This gives us;

x = (-2-x) + 6

x = 4 - x

thus, 2x = 4

thus, x = 2.

Substituting the value of x in equation of y,

y = - 2 - x

y = - 2 - 2

thus, y = - 4.

Thus, the solution is x = 2, y = - 4