-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.
The two inequalities define a region of the coordinate plane: there is no unique solution.
It is an inequality in x.
-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.
(2x - 4)/(4x + 5) - 12
Quadrant 4 is completely shaded. In quadrant 4, y will always be less than 2x because y is negative and 2x is positive.
The two inequalities define a region of the coordinate plane: there is no unique solution.
Suppose the number is x. Then 4x + 3 = 2x - 9 Subtract 2x from both sides: 2x + 3 = - 9 Subtract 3 from both sides: 2x = - 12 Divide both sides by 2: x = - 6
It is an inequality in x.
-2
Let x equal the smallest. The next two are x + 2 and x + 4. If the greatest is 8 less than twice the smallest, then adding 8 to the greatest will make it equal twice the smallest. 2x = x + 4 + 8 Solve for x 2x = x + 12 x = 12 x + 2 = 14 x + 4 = 16 Check it. 16 is 8 less than 2 x 12 It checks.