Question 1091642
 y= 2-x and y = 8x+4
Are two equations which may have a solution or INTERSECTION POINT.


2-x=8x+4
Is the single equation in one variable which occurs if you substitute for y in the previously given system of equations.  You can solve this single equation for x, and use this value to find y; and then you have the SOLUTION to the previously given system.