The two inequalities define a region of the coordinate plane: there is no unique solution.
-2x + 6 <= 4x + 18 -2x <= 4x + 12 -12 <= 6x -2 <= x
When y is less than or equal to 2x-6
-2 - 2x is greater than or equal to 6 only if x is less than or equal to -4.
It is an inequality in x.
The two inequalities define a region of the coordinate plane: there is no unique solution.
-2x + 6 <= 4x + 18 -2x <= 4x + 12 -12 <= 6x -2 <= x
When y is less than or equal to 2x-6
-2 - 2x is greater than or equal to 6 only if x is less than or equal to -4.
x is less than or equal to 6
2x + 1 is equal to or less than 13.
x > -3
It is an inequality in x.
x < 4
2x+3<7 2x<7-3 2x<4 x<2
-2x+2
It can't be solved because the discriminant of this quadratic equation is less than zero