1. Find the value of one unknown in either of the given equations.
2. Substitute this value in the other equation.
Solve using substitution:
1. Find the value of y in the first equation y=2x+8
2. Substitute this value in the second equation and solve for x:
To find the y-coordinate, back-substitute the x-value into y=2x+8:
The solution is (-1,-6)