y = 3x + 2 Courtney Hi Courtney,
Each of the two equations, y = 3x + 2 and y = 4x  5 is the equation of a line in the plane. The instruction "solve for x" asks you to find the xcoordinate of the point where they intersect. If you knew the xcoordinate of this point of intersection then you could find the ycoordinate in two different ways. Since the point is on the first line the ycoordinate is given by and since the point is on the second line the ycoordinate is given by But this point is on both lines so the value for the ycoordinate must be the same in both cases. That is Now can you solver for x? Penny
