Question 444214
1. Make sure one of the variables has the same or opposite coefficient between the two equations (for example, 4x and 4x or 7y and -7y). Since your equations both have 4x, you can skip this step.
2. Make sure your equations are in the same format. Yours already are (?y = ?x + ?), so you can skip this step as well.
3. Subtract (if your coefficients in Step #1 were the same) or add (if the coefficients in Step #1 were opposites) the two equations. Since your coefficients (4 and 4) were the same, you subtract in order to get rid of the x.
                    5y = 4x + 8
                  -(2y = 4x - 16)
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                    3y = 0x + 24
                    3y = 24
4. Solve for the remaining variable (in your case, y).
                    3y = 24
    Divide both sides by 3: y = 8
5. Plug the result into either one of the equations (it doesn't matter which one) and solve for the other variable (in your case, x).
                    2y = 4x - 16
                    2(8) = 4x - 16
                    16 = 4x - 16
    Add 16 to both sides: 32 = 4x
    Divide both sides by 4 to isolate the x: 8 = x
6. Therefore, your y-coordinate is 8 and your x-coordinate is 8. You can write this as the coordinate (8,8).
7. Your final answer is (8,8).