In what range of M, the intersection of y = - 2 / 3x-m / 3 and y = 2x + M-1 is in the fourth quadrant?

In what range of M, the intersection of y = - 2 / 3x-m / 3 and y = 2x + M-1 is in the fourth quadrant?

y=-2/3x-m/3①
y=2x+m-1②
The solution is x = (3-4m) / 8
Y=-1/4
So: as long as x > o
(3-4M)/8>0
The solution is: M

If the line y = - 2x - 1 and the line y = x + m are compared with the third quadrant, please determine the value range of the real number M
Online, etc

The intersection with the third quadrant indicates that y = x + m passes through the third quadrant
So at least M

If the line y = - 2x-1 intersects with the line y = 3x + a at a point in the third quadrant, the value range of a is obtained

Calculate the abscissa of the intersection first
-2x-1=3x+a
5x=-1-a
x=(-1-a)/5
third quadrant
So (- 1-A) / 5

If the line y equals minus 2x minus 1 and the line y equals 3x plus m intersects in the third quadrant, please determine the value range of the real number M

The answers of the above netizens are all wrong. If the intersection point is in the third quadrant, then X